Refereed Papers and Issued Patents

2024

248. Zhang, Z.; Gowda, R. R.; Chen, E. Y.-X.* Chemosynthetic P4HB: A Ten-Year Journey from a "Non-Polymerizable" Monomer to a High-Performance Biomaterial. Acc. Mater. Res. 2024, DOI: 10.1021/accountsmr.4c00182.

 
 
 

247. Ma, K., An, H.-Y., Nam, J.; Reilly, L. T.; Zhang, Y.-L.; Chen, Y.-X.; Xu, T.-Q.* Fully Recyclable and Tough Thermoplastic Elastomers from Simple Bio-sourced δ-Valerolactones. Nat. Commun. 2024, DOI: 10.1038/s41467-024-52229-1.

 
 
 

246. Diment, W. T.; Gowda, R. R.; Chen, E. Y.-X.* Unraveling the Mechanism of Catalyzed Melt-Phase Polyester Depolymerization via Studies of Kinetics and Model Reactions. J. Am. Chem. Soc. 2024, 146, DOI: 10.1021/jacs.4c08127.

 
 
 

245. Zhan, W.; He, J.; Zhang, Y.;* Chen, E. Y.-X. Pendulum-like Oscillatory Adaptive Catalysis. Trends Chem. 2024, 5, DOI: 10.1016/j.trechm.2024.08.002.

 

244. Zhao, W.; Cui, F.; He, J.; Zhang, Y.* Chen, E. Y.-X. Oscillatory Adaptive Catalysis: Intramolecular Chain Shuttling Regulated by Stereo-Autocorrection in Stereoselective Polymerization of Lactide. Chem 2024, 10, DOI: 10.1016/j.chempr.2024.06.031

 
 
 

243. Diment, W. T.; Chen, E. Y.-X.* A Three-Pronged Approach Towards a Sustainable Chemical Industry. Chem 2024, 10, 1959−1960. DOI: 10.1016/j.chempr.2024.06.024.

 

242. Hu, Z.; Bernsten, S. N.; Shi, C.; Sangroniz, A.; Chen, E. Y.-X.; Miyake, G. M.* Terpenoid-Based High-Performance Polyester with Tacticity-Independent Crystallinity and Chemical Circularity. Chem 2024, 10, DOI: 10.1016/j.chempr.2024.05.024.

 
 
 

241. Shi, C.; Diment, W. T. Chen, E. Y.-X.* Closed-loop Recycling of Mixed Plastics of Polyester and CO2-based Polycarbonate to a Single Monomer. Angew. Chem. Int. Ed. 2024, 63, e202405083. DOI: 10.1002/anie.202405083.

 
 
 

240. Zhou, L.; Chen, E. Y.-X. Precision Synthesis and Closed-loop Recycling of Ultrahigh-Molar-Mass Cyclic Polymers. Nat. Chem. 2024. DOI: 10.1038/s41557-024-01526-9.

239. Zhou, L.; Reilly, L. T.; Shi, C.; Quinn, E. C.; Chen, E. Y.-X.* Proton-Triggered Topological Transformation in Superbase-Mediated Selective Polymerization Enables Access to Ultrahigh-Molar-Mass Cyclic Polymers. Nat. Chem. 2024, 16, 1357-1365, DOI: 10.1038/s41557-024-01511-2.

 
 
 

238. Gilsdorf, R. A.;† Chokkapu, E. R.;† Athaley, A.; Uekert, T.; Gowda, R. R.; Singh, A.; DesVeaux, J. S.; Beckham, G. T.;* Chen, E. Y.-X.* Bio-based Lactone-Acrylic Plastics with Performance and Recyclability Advantages. Cell Rep. Phys. Sci. 2024, 5, 101938. DOI: 10.1016/j.xcrp.2024.101938 († Equal contributor).

 
 
 

237. Scoti, M.; Zhou, L.; Chen, E. Y.-X.; De Rosa, C.* Crystal Structure of Atactic and Isotactic Poly(3-hydroxy-2,2-dimethylbutyrate): A Chemically Recyclable Poly(hydroxyalkanoate) with Tacticity Independent Crystallinity. Macromolecules 2024, 57, 4357−4373. DOI: 10.1021/acs.macromol.4c00165.

 
 
 

236. Liu, X.; Kozarekar, S.; Shaw, A. L.; Xu, T.-Q.; Chen, E. Y.-X.; Broadbelt, L. J.* Understanding Ceiling Temperature as a Predictive Design Parameter for Circular Polymers. Cell Rep. Phys. Sci. 2024, 5, 101910. DOI: 10.1016/j.xcrp.2024.101910.

 
 
 

235. Shi, C.; Rorrer, N. A.; Shaw, A. L.; Clarke, R. W.; Buss, B. L.; Beckham, G. T.; Broadbelt, L. J.;* Chen, E. Y.-X.* Topology-Accelerated and Selective Cascade Depolymerization of Architecturally Complex Polyesters. J. Am. Chem. Soc. 2024, 146, 9261-9271. DOI: 10.1021/jacs.4c00526.

 
 
 

234. Shi, C.;† Quinn, E. C.;† Diment, W. T.;† Chen, E. Y.-X.* Recyclable and (Bio)degradable Polyesters in A Circular Plastics Economy. Chem. Rev. 2024, 124, 4393-4478. DOI: 10.1021/acs.chemrev.3c00848 († Equal contributor).

 
 
 

233. Tian, J.-J.; Liu, X.; Ye, L.; Zhang, Z.; Quinn, E. C.; Shi, C.; Broadbelt, L. J.*; Marks, T.J.*; Chen, E. Y.-X.* Redesigned Nylon-6 Variants with Enhanced Recyclability, Ductility, and Transparency. Angew. Chem. Int. Ed. 2024, 63, e202320214. DOI: 10.1002/anie.202320214. (Designated “Hot Paper”)

 
 
 

232. Han, X.-W.; Zhang, X.; Zhou, Y.; Maimaitiming, A.; Sun, X.-L.; Gao, Y.;* Li, P.; Zhu, B.; Chen, E. Y.-X.;* Kuang, X.; Tang, Y.* Circular Olefin Copolymers Made de novo from Ethylene and α-Olefins. Nat. Commun. 2024, 15, 1462. DOI: 10.1038/s41467-024-45219-w.

 
 
 

231. Clarke, R. W.; Caputo, M. R.; Fonseca, L. P.; McGraw, M. L.; Reilly, L. T.; Franklin, K. A.; Müller, A. J.;* Chen, E. Y.-X.* Cyclic and Linear Tetrablock Copolymers Synthesized at Speed and Scale by Lewis Pair Polymerization of a One-pot (Meth)acrylic Mixture and Characterized at Multiple Levels. J. Am. Chem. Soc. 2024, 146, 4930-4941. DOI: 10.1021/jacs.3c14136.

 
 
 

230. Hardian, R.; Ghaffar, A.; Shi, C.; Chen, E. Y.-X.; Szekely, G. Chemically Recyclable Nanofiltration Membranes Fabricated from Two Circular Polymer Classes of the Same Monomer Origin. J. Membr. Sci. Lett., 2024, 4, 100067. DOI: 10.1016/j.memlet.2024.100067.

 
 
 

2023

229. Cywar, R. M.;† Ling, C.;† Clarke, R. W.;† Kim, D. H.; Kneucker, C. M.; Salvachúa, D.; Addison, B.; Hesse, S. A.; Takacs, C. J.; Xu, S.; Urgun-Demirtas, M.; Woodworth, S. P.; Rorrer, N. A.; Johnson, C. W.; Tassone, C. J.; Allen, R. D.; Chen, E. Y.-X.;* Beckham, G. T.* Elastomeric vitrimers from designer polyhydroxyalkanoates with recyclability and biodegradability. Sci. Adv. 2023, 9, eadi1735. DOI: 10.1126/sciadv.adi1735 († Equal contributor).

 
 
 

228. Zhang, Z.;† Quinn, E. C.;† Olmedo-Martínez, J. L.; Caputo, M. R.; Franklin, K. A.; Müller, A. J.;* Chen, E. Y.-X.* Toughening Brittle Bio-P3HB with Synthetic P3HB of Engineered Stereomicrostructures. Angew. Chem. Int. Ed. 2023, 62, e202311264. DOI: 10.1002/anie.202311264 († equal contributor. Designated “Hot Paper”).

 
 
 

227. Chen, E. Y.-X. Factoring timescale in for sustainable polymer design. Nat. Sustain. 2023, 6, 1140−1141. DOI: 10.1038/s41893-023-01216-3.

 

226. Caputo, M. R.; Shi, C.; Tang, X.; Sardon, H.;* Chen, E. Y.-X.;* Müller, A. J.* Tailoring the Nucleation and Crystallization of Polyhydroxybutyrate by Copolymerization. Biomacromolecules 2023, 24, 5328−5341. DOI: 10.1021/acs.biomac.3c00808.

 
 
 

225. Quinn, E. C.; Knauer, K. M.; Beckham, G. T.; Chen, E. Y.-X.* Mono-Material Product Design with Bio-Based, Circular, and Biodegradable Polymers. One Earth 2023, 6, 582−586. DOI: 10.1016/j.oneear.2023.05.019

 
 
 

224. Li, X.-L.; Clarke, R. W.; An, H.-Y.; Gowda, R. R.; Jiang, J. -Y.; Xu, T.-Q.;* Chen, E. Y.-X.* Dual Recycling of Depolymerization Catalyst and Biodegradable Polyester that Markedly Outperforms Polyolefins. Angew. Chem. Int. Ed. 2023, 62, e202303791. DOI: 10.1002/anie.202303791 (Designated "Hot Paper").

 
 
 

223. Shi, C.; Reilly, L. T.; Chen, E. Y.-X.* Hybrid Monomer Design Synergizing Property Trade-offs in Developing Polymers for Circularity and Performance. Angew. Chem. Int. Ed. 2023, 62, e202301850. DOI: 10.1002/anie.202301850. (Invited minireview).

 
 
 

222. Westlie, A. H.; Hesse, S. A.; Tang, X.; Quinn, E. C.; Parker, C. R.; Takacs, C. J.; Tassone, C. J.; Chen, E. Y.-X.* All-Polyhydroxyalkanoate Triblock Copolymers via a Stereoselective-Chemocatalytic Route. ACS Macro Lett. 2023, 12, 619−625. DOI: 10.1021/acsmacrolett.3c00162.

 
 
 

221. Clarke, R. W.;† Sandmeier, T.;† Franklin, A. Kevin;† Reich, D.; Zhang, X.; Vengallur, N.; Patra, T. K.; Tannenbaum, R. J.; Adhikari, S.; Kumar, S. K.;* Rovis, T.;* Chen, E. Y.-X.* Dynamic Crosslinking Compatibilizes Immiscible Mixed Plastics, Nature 2023, 616, 731-739. DOI: 10.1038/s41586-023-05858-3 († equal contributor).

 
 
 

220. Zhou, L.;† Zhang, Z.;† Shi, C.; Scoti, M.; Barange, D. K.; Gowda, R. R.; Chen, E. Y.-X.* Chemically Circular, Mechanically Tough and Melt-processable Polyhydroxyalkanoates, Science 2023, 380, 64−69. DOI: 10.1126/science.adg4520 († equal contributor).

 
 
 

219. Quinn, E. C.; Westlie, A. H.; Sangroniz, A.; Caputo, M. R.; Xu, S.; Zhang, Z.; Urgun-Demirtas, M.; Müller, A. J.;* Chen, E. Y.-X.* Installing Controlled Stereo-defects Yields Semicrystalline and Biodegradable Poly(3-hydroxybutyrate) with High Toughness and Optical Clarity, J. Am. Chem. Soc. 2023, 145, 5795−5802. DOI: 10.1021/jacs.2c12897.

 
 
 

218. Shi, C.; Zhang, Z.; Scoti, M.; Yan, X.-Y.; Chen, E. Y.-X.* Endowing Polythioester Vitrimer with Intrinsic Crystallinity and Chemical Recyclability, ChemSusChem 2023, 16, e202300008. DOI: 10.1002/cssc.202300008.

 

217. Song, Y.; He, J.; Zhang, Y.;* Gilsdorf, R. A.; Chen, E. Y.-X. Recyclable Cyclic Bio-based Acrylic Polymer via Pairwise Monomer Enchainment by a Trifunctional Lewis Pair, Nat. Chem. 2023, 15, 366−376. DOI: 10.1038/s41557-022-01097-7.

 
 
 

216. Li, X.-L.; Clarke, R. W.; Jiang, J. -Y.; Xu, T.-Q.;* Chen, E. Y.-X.* A Circular Polyester Platform Based on Simple Gem-disubstituted Valerolactones, Nat. Chem. 2023, 15, 278−285. DOI: 10.1038/s41557-022-01077-x.

 
 
 

2022

215. Reilly, L. T.;† McGraw, M. L.;† Eckstrom, F. D.; Clarke, R. W.; Franklin, K. A.; Chokkapu, E. R.; Cavallo, L.; Falivene, L.;* Chen, E. Y.-X.* Compounded Interplay of Kinetic and Thermodynamic Control over Comonomer Sequence by Lewis Pair Polymerization, J. Am. Chem. Soc. 2022, 144, 23572−23584. DOI: 10.1021/jacs.2c10568 (†equal contributor).

 

214. Dastidar, R.; Kim, M. S.; Zhou, P.; Luo, Z.; Shi, C.; Barnett, K. J.; McClelland, D. J.; Chen, E. Y.-X.; Van Lehn, R. C.; Huber, G. W.* Catalytic Production of Tetrahydropyran (THP): a Biomass-derived, Economically Competitive Solvent with Demonstrated Use in Plastic Dissolution, Green Chem. 2022, 24, 9101−9113. DOI: 10.1039/D2GC03475A.

 
 
 

213. Tang, X.;* Shi, C.; Zhang, Z.; Chen, E. Y.-X.* Crystalline Aliphatic Polyesters from Eight-Membered Cyclic (Di)Esters, J. Polym. Sci. 2022, 60, 3478−3488. DOI: 10.1002/pol.20220418.

 
 
 

212. Zhang, Z.; Shi, C.; Scoti, M.; Tang, X.; Chen, E. Y.-X.* Alternating Isotactic Polyhydroxyalkanoates via Site- and Stereo-selective Polymerization of Unsymmetrical Diolides, J. Am. Chem. Soc. 2022, 144, 20016−20024.

 
 
 

211. Westlie, A. H.; Quinn, E. C.; Parker, C. R.; Chen, E. Y.-X.* Synthetic Biodegradable Polyhydroxyalkanoates (PHAs): Recent Advances and Future Challenges, Prog. Polym. Sci. 2022, 134, 101608. DOI: 10.1016/j.progpolymsci.2022.101608.

 
 
 

210. Caputo, M. R.; Tang, X.; Westlie, A. H.; Sardon, H.;* Chen, E. Y.-X.;* Müller, A. J.* Effect of Chain Stereoconfiguration on Poly(3-hydroxybutyrate) Crystallization Kinetics, Biomacromolecules 2022, 23, 3847−3859. DOI: 10.1021/acs.biomac.2c00682.

 
 
 

209. Westlie, A. H.; Chen, E. Y.-X.; Holland, C. M.; Stahl, S. S.; Doyle, M.; Trenor, S. R.; Knauer, K. M.* Polyolefin Innovations Towards Circularity and Sustainable Alternatives, Macromol. Rapid Commun. 2022, 43, 2200492. DOI: 10.1002/marc.202200492.

 
 
 

208. Jehanno, C.; Alty, J. W.; Roosen, M.; De Meester, S.;* Dove, A. P.; Chen, E. Y.-X.; Leibfarth, F. A.;* Sardon, A.* Critical Advances and Future Opportunities in Upcycling Commodity Polymers, Nature 2022, 603, 803−814. DOI: 10.1038/s41586-021-04350-0.

 
 
 

207. Cywar, R. M.; Rorrer, N. A.; Mayes, H. B.; Maurya, A. K.; Tassone, C. J.; Beckham, G. T.; Chen, E. Y.-X.* Redesigned Hybrid Nylons with Optical Clarity and Chemical Recyclability, J. Am. Chem. Soc. 2022, 144, 5366−5376. DOI: 10.1021/jacs.1c12611.

 
 
 

206. Sangroniz, A.; Zhu, J.-B.; Etxeberria, A.; Chen, E. Y.-X.;* Sardon, H.* Modulating the Crystallinity of a Circular Plastic towards Packaging Material with Outstanding Barrier Properties, Macromol. Rapid Commun. 2022, 43, 2200008, DOI: 10.1002/marc.202200008.

 

205. McGraw, M. L.; Reilly, L. T.; Clarke, R. W.; Cavallo, L.; Falivene, L.;* Chen, E. Y.-X.* "Mechanism of Spatial and Temporal Control in Precision Cyclic Vinyl Polymer Synthesis by Lewis Pair Polymerization", Angew. Chem. Int. Ed. 2022, 61, e202116303. DOI: 10.1002/anie.202116303.

 

204. Shi, C.; Clarke, W. R.; McGraw, M. L.; Chen, E. Y.-X.* “Closing ‘One Monomer–Two Polymers–One Monomer’ Loop via Orthogonal (De)polymerization of A Lactone/Olefin Hybrid”, J. Am. Chem. Soc. 2022, 144, 2264−2275.

 
 
 

203. Hardian, R.; Cywar, R. M.; Chen, E. Y.-X.; Szekely, G. “Sustainable Nanofiltration Membranes Based on Biosourced Fully Recyclable Polyesters and Green Solvents”, J. Mem. Sci. Lett. 2022, 2, 100016, DOI: 10.1016/j.memlet.2022.100016.

 

202. Bai, Y.; Wang, H.; Hu, L.; He, J.; Zhang, Y.;* Chen, E. Y.-X. “One-Step Synthesis of Lignin-Based Triblock Copolymers as High-Temperature and UV-Blocking Thermoplastic Elastomers”, Angew. Chem. Int. Ed. 2022, 61, e202114946, DOI: 10.1002/anie.202114946 (Designated "Hot Paper").

 

201. Cywar, R. M.; Rorrer, N. A.; Hoyt, C. B.; Beckham, G. T.;* Chen, E. Y.-X.* "Bio-Based Polymers with Performance-Advantaged Properties", Nat. Rev. Mater. 2022, 7, 83−103.

 
 
 

2021

200. Beckham, G. T.; Allen, R.; Baldwin, R.; Reed, M.; Rorrer, J.; Roman-Leshkov, Y.; McGeehan, J.; Chen, E. “Transforming the Science and Technology of Plastics Recycling”, CEP 2021, 36−41.

 

199. Yan, B.; Shi, C.; Beckham, G. T.; Chen, E. Y.-X.; Román-Leshkov, Y.* “Breaking C(sp3)–C(sp3) Bonds via Electrochemically Mediated Hydrogen Atom Transfer Reactions and Its Application to Polystyrene Deconstruction”, ChemSusChem 2022, 15, e202102317, DOI: 10.1002/cssc.202102317.

 
 
 

198. Shi, C.; Reilly, L. T.; Kumar, V. S. P.; Coile, M. W.; Nicholson, S. R.; Broadbelt, L. J.;* Beckham, G. T.;* Chen, E. Y.-X.* "Design Principles for Intrinsically Circular Polymers with Tunable Properties", Chem 2021, 7, 2896−2912 (Invited Perspective).

 
 
 

197. Tang, X.;* Shi, C.; Zhang, Z.; Chen, E. Y.-X.* "Toughening Biodegradable Isotactic Poly(3-hydroxybutyrate) via Stereoselective Copolymerization of a Diolide and Lactones", Macromolecules 2021, 54, 9401−9409.

 
 
 

196. Bai, Y.; Wang, H.; Hu, L.; He, J.; Zhang, Y.;* Chen, E. Y.-X. "Dual-Initiating and Living Frustrated Lewis Pairs: Expeditious Synthesis of Biobased Thermoplastic Elastomers", Nat. Commun. 2021, 12, 4874. DOI: 10.1038/s41467-021-25069-6.

 
 
 

195. Clarke, R. W.; McGraw, M. L.; Newell, B. S.; Chen, E. Y.-X.* "Thermomechanical Activation Achieving Orthogonal Working/Healing Conditions of Nanostructured Tri-Block Copolymer Thermosets", Cell Rep. Phys. Sci. 2021, 2, 100483.

 
 
 

194. Lacovidou, E.; Geyer, R.; Kalow, J.; Palardy, J.; Dunn, J.; Hoellein, T.; Chen, E. Y.-X. "Toward a Circular Economy for Plastics", One Earth 2021, 4, 591−594 (Featured as Voices article).

 

193. Shi, C.; Li, Z.-C.; Caporaso, L.; Cavallo, L.; Falivene, L.;* Chen, E. Y.-X.* "Hybrid Monomer Design for Unifying Conflicting Polymerizability, Recyclability, and Performance Properties", Chem 2021, 7, 670−685 (Featured as the issue Cover).

 
 
 

192. McGraw, M. L.; Clarke, R. W.; Chen, E. Y.-X.* "Synchronous Control of Chain Length/Sequence/Topology for Precision Synthesis of Cyclic Block Copolymers from Monomer Mixtures", J. Am. Chem. Soc. 2021, 143, 3318−3322 (Featured as ACS Editors’ Choice and in JACS Spotlights).

 
 
 

2020

191. Westlie, A. H.; Chen, E. Y.-X.* "Catalyzed Chemical Synthesis of Unnatural Aromatic Polyhydroxyalkanoate (PHA) and Aromatic-Aliphatic PHAs with Record-High Glass-Transition and Decomposition Temperatures", Macromolecules 2020, 53, 9906−9915.

 
 
 

190. Shi, C.; McGraw, M. L.; Li, Z.-C.; Cavallo, L.; Falivene, L.;* Chen, E. Y.-X.* "High-Performance Pan-Tactic Polythioesters with Intrinsic Crystallinity and Chemical Recyclability", Sci. Adv. 2020, 6, eabc0495.

 

189. McGraw, M. L.; Chen, E. Y.-X.* "Lewis Pair Polymerization: Perspective on a Ten-Year Journey", Macromolecules 2020, 53, 6102-6122 (Invited Perspective & Cover Article).

 
PB172.jpg
 
 

188. Gilsdorf, R. A.; Nicki, M. A.; Chen, E. Y.-X.* "High Chemical Recyclability of Vinyl Lactone Acrylic Bioplastics", Polym. Chem. 2020, 11, 4942-4950 (Invited contribution to the special issue on Plastics in a Circular Economy).

 
2020_PolymChem_TOC.png
 
 

187. McGraw, M. L.; Clarke, R. W.; Chen, E. Y.-X.* "Compounded Sequence Control in Polymerization of One-Pot Mixtures of Highly Reactive Acrylates by Differentiating Lewis Pairs", J. Am. Chem. Soc. 2020, 142, 5969-5973 (Featured in JACS Spotlights).

 
PB170.jpg
 
 

186. Tang, X.; Westlie, A. H.; Caporaso, L.; Cavallo, L.; Falivene, L.;* Chen, E. Y.-X.* “Biodegradable Polyhydroxyalkanoates by Stereoselective Copolymerization of Racemic Diolides: Stereocontrol Mechanism and Polyolefin-Like Properties”, Angew. Chem. Int. Ed. 2020, 59, 7881-1890.

 
PB169.jpg
 
 

185. Clarke, R. W.; McGraw, M. L.; Gowda, R. R.; Chen, E. Y.-X.* “Lewis Pair Polymerization of Renewable Indenone to Erythro-Ditactic High-Tg Polymers with an Upcycling Avenue", Macromolecules 2020, 53, 640-648.

 
PB168.jpg
 
 

2019

184. Tang, X.; Westlie, A. H.; Watson, E. M.; Chen, E. Y.-X.* “Stereosequenced Crystalline Polyhydroxyalkanoates from Diastereomeric Monomer Mixtures”, Science 2019, 366, 754-758.

PB167.png
 

183. Vidal, F.; Watson, E. M.; Chen, E. Y.-X.* “All-Methacrylic Stereoregular Triblock Copolymer Thermoplastic Elastomers Toughened by Supramolecular Stereocomplexation”, Macromolecules 2019, 52, 7313-7323.

 
2019_MA.png
 
 

182. Chen, J.;* McGraw, M. L.; Chen, E. Y.-X.* “Diverse Catalytic Systems and Mechanistic Pathways for Hydrosilylative Reduction of CO2”, ChemSusChem 2019, DOI: 10.1002/cssc.201901764.

PB165.jpg
 

181. Gallardo-Villagrán, M.; Vidal, F.; Palma, P.; Álvarez, E.; Chen, E. Y.-X.; Cámpora, J.; Rodríguez-Delgado, A. “Aluminium (III) Dialkyl 2,6-bisimino-4R-dihydropyridinates(-1): Selective Synthesis, Structure and Controlled Dimerization”, Dalton Trans. 2019, 48, 9104-9116.

PB164.jpg
 

180. Sangroniz, A.; Zhu, J.-B.; Tang, X.; Etxeberria, A.; Chen, E. Y.-X.;* Sardon, H.* “Packaging Materials with Desired Mechanical and Barrier Properties and Full Chemical Recyclability”, Nat. Commun. 2019, 10, 3559., DOI: 10.1038/s41467-019-11525-x.

2019_NatComm TOC.png
 

179. Liu, X.; Hong, M.;* Falivene, L.;* Cavallo, L.; Chen, E. Y.-X.* “Closed-Loop Polymer Upcycling by Installing Property-Enhancing Comonomer Sequences”, Macromolecules 2019, 52, 4570-4578.

 
2019_MA Upcycling TOC.png
 
 

178. Cywar, R. M.; Zhu, J.-B.; Chen, E. Y.-X.* “Selective or Living Organopolymerization of a Six-five Bicyclic Lactone to Produce Fully Recyclable Polyesters”, Polym. Chem. 2019, 10, 3097-3106 (Invited contribution to the Polymer Chemistry Pioneering Investigators Issue).

 
PB161.jpg
 
 

177. Hong, M.;* Chen, E. Y.-X.* “Future Directions for Sustainable Polymers”, Trends Chem. 2019, 1, 148-151 (invited contribution to the special launch issue).

 
Linear vs Circular Economy.png
 
 

176. Wilson, J. F.; Chen, E. Y.-X.* “Difuranic Diols for Renewable Polymers with Pendent Furan Rings”, ACS Sustainable Chem. Eng. 2019, 7, 7035-7046.

 
PB159.jpg
 
 

175. McGraw, M.; Chen, E. Y.-X.* "Borane/silane Frustrated Lewis Pairs for Polymerization of β-Substituted Michael Acceptors", Tetrahedron 2019, 75, 1475−1480 (Invited contribution to the special issue on Frustrated Lewis Acids and Organoboranes).

PB158.jpg
 

174. Gowda, R. R.;* Chen, E. Y.-X.* “Regioselective Hydrogenation of Itaconic Acid to γ-Isovalerolactone by Transition-Metal Nanoparticle Catalysts”, ChemSusChem 2019, 12, 973-977(designated as VIP).

 
PB157.jpg
 
 

173. Cywar, R. M.; Wang, L.; Chen, E. Y.-X.* “Thermally Regulated Recyclable Carbene Catalysts for Upgrading of Biomass Furaldehydes”, ACS Sustainable Chem. Eng. 2019, 7, 1980-1988 (Invited contribution to the special issue on Chemical Conversion of Biomass to Fine and Platform Chemicals).

 
2019_ACS SusChemEng.png
 
 

172. Zhu, J.-B.; Chen, E. Y.-X.* "Catalyst's Sidearm-Induced Stereoselectivity Switching in Polymerization of a Racemic Lactone for Stereocomplexed Crystalline Polymer with a Circular Life Cycle", Angew. Chem. Int. Ed. 2019, 58, 1178-1182.

 
PB155.jpg
 
 

171. Tang, X.; Chen, E. Y.-X.* “Towards Infinitely Recyclable Plastics Derived from Renewable Cyclic Esters”, Chem 2019, 5, 284-312 (Invited contribution).

 
PB154.jpg
 
 

2018

170. Hong, M.;* Chen, J.; Chen, E. Y.-X.* " Polymerization of Polar Monomers Mediated by Main-Group Lewis Acid-Base Pairs ", Chem. Rev. 2018, 118, 10551−10616.

 
PB153.jpg
 
 

169. McGraw, M.; Chen, E. Y.-X.* " Catalytic Lewis Pair Polymerization of Renewable Methyl Crotonate to High-Molecular-Weight Polymers ", ACS Catal. 2018 , 8, 9877-9887.

PB152.jpg
 

168. Deming, T. J.*; Klok, H.-A.*; Armes, S. P.; Becker, M. L.; Champion, J. C.; Chen, E. Y.-X.; Heilshorn, S. C.; van Hest, J. C.-M.; Irvine, D. J.; Johnson, J. A.; Kiessling, L. L.; Maynard, H. D.; Olvera de la Cruz, M.; Sullivan, M. O.; Tirrell, M. V.; Anseth, K. S.; Lecommandoux, S.; Percec, S.; Zhong, Z.; Albertsson, A.C. " Polymers at the Interface with Biology ", Biomacromolecules 2018, 19, 3151-3162.

 

167. Zhu, J.-B.; Chen, E. Y.-X.* " Living Coordination Polymerization of a Six-Five Bicyclic Lactone to Produce Completely Recyclable Polyester ", Angew. Chem. Int. Ed. 2018, 57, 12558-12562.

PB151.jpg
 

166. Tang, J.; Chen, E. Y.-X.* " Effects of Chain Ends on Thermal and Mechanical Properties and Recyclability of Poly(γ-butyrolactone) ", J. Polym. Sci. Part A: Polym. Chem. 2018, 56, 2271-2279.

 
PB150.jpg
 
 

165. Tang, X.; Chen, E. Y.-X.* " Chemical Synthesis of Perfectly Isotactic and High Melting Bacterial Poly(3-hydroxybutyrate) from Bio-Sourced Racemic Cyclic Diolide ", Nat. Commun. 2018, 9, 2345 (ranked 29th among Nature Communications Top 50 most read chemistry and materials science articles from 2018).

PB149.jpg
 

164. Zhu, J.-B.; Watson, E. M.; Tang, J.; Chen, E. Y.-X.* "A Synthetic Polymer System with Repeatable Chemical Recyclability ", Science 2018, 360, 398-403.

2018_Science TOC.png
 

163. Feng, G.; Du, C.; Xiang, L.;* del Rosal, I.; Li, G.; Leng, X.; Chen, E. Y.-X.;* Maron, L.;* Chen, Y.* "Side Arm Twist on Zn-Catalyzed Hydrosilylative Reduction of CO2 to Formate and Methanol Equivalents with High Selectivity and Activity", ACS Catal. 2018, 8, 4710-4718.

PB147.jpg
 

162. Chen, J.; Hong, M.; Chen, E. Y.-X. "Lewis Pair Polymerization for New Reactivity and Structure in Polymer Synthesis", Molecules 2018, 23, 915/1-915/3 (Editorial for the special issue on Lewis pair polymerization).

 

161. Wang, Q.; Zhao, W.; Zhang, S.; He, J.; Zhang, Y.;* Chen, E. Y.-X. "Living Polymerization of Conjugated Polar Alkenes Catalyzed by N-Heterocyclic Olefin-Based Frustrated Lewis Pairs", ACS Catal. 2018, 8, 3571-3578.

PB146.jpg
 

160. Zang, H.;* Wang, K.; Zhang, M.; Xie, R.; Wang, L.; Chen, E. Y.-X.* "Catalytic Coupling of Biomass-Derived Aldehydes into Intermediates for Biofuels and Materials", Catal. Sci. Tech. 2018, 8, 1777-1798 (Invited review).

PB145.jpg
 

159. Hu, L.; He, J.; Zhang, Y.;* Chen, E. Y.-X. "Living Group Transfer Polymerization of Renewable α-Methylene-γ-butyrolactones using Al(C6F5)3 Catalyst", Macromolecules 2018, 51, 1296-1307.

 
PB144.jpg
 
 

2017

158. Hong, M.;* Tang, X.; Newell, B. S.; Chen, E. Y.-X.* "'Non-Strained ' γ-Butyrolactone-Based Copolyesters: Copolymerization Characteristics and Composition-Dependent (Thermal, Eutectic, Cocrystallization and Degradation) Properties", Macromolecules 2017, 50, 8469-8479.

PB143.jpg
 

157. Wang, L.; Eguchi, Y.; Chen, E. Y.-X.* "Streamlined Synthesis of Biomonomers for Bioresourced Materials: Bisfuran Diacids, Diols and Diamines via Common Bisfuran Dibromide Intermediates", Ind. Eng. Chem. Res. 2017, 56, 11380-11387.

 
PB142.jpg
 
 

156. Wang, Y.; Hong, M.; Bailey, T. S.; Chen, E. Y.-X.* "Brush Polymer of Donor-Accepter Dyads via Adduct Formation Between Lewis Base Polymer Donor and All Carbon Lewis Acid Acceptor", Molecules 2017, 22, 1564/1-1564/20 (invited contribution to the special issue on Lewis pair polymerization).

PB141.jpg
 

155. Hong, M.*; Chen, E. Y.-X.* "Chemically Recyclable Polymers: A Circular Economy Approach to Sustainability", Green Chem. 2017, 19, 3692-3706 (Invited Critical Review & designated Hot Article).

 
2017_GreenChem TOC.png
 
 

154. Vidal, F.; Chen, E. Y.-X.* "Reactivity of Bridged and Nonbridged Zirconocenes Towards Bio-renewable Itaconic Esters and Anhydride", Organometallics 2017, 36, 2922-2933.

PB139.jpg
 

153. Tang, J.; Chen, E. Y.-X.* "Increasing Complexity in Organopolymerization of Multifunctional γ-Butyrolactones", Eur. Polym. J. 2017, 95, 678-692 (invited contribution to the special issue on organocatalyzed polymerization).

PB138.jpg
 

152. Zhu, J.-B.; Tang, X.; Falivene, L.;* Caporaso, L.; Cavallo, L.; Chen, E. Y.-X.* "Organocatalytic Coupling of Bromo-Lactide with Cyclic Ethers and Carbonates to Chiral Bromo-Diesters: NHC or Anion Catalysis?", ACS Catal. 2017, 7, 3929-3933.

PB137.jpg
 

151. Gowda, R. R.;* Chen, E. Y.-X.* "Chemoselective Lewis Pair Polymerization of Renewable Multivinyl-Functionalized γ-Butyrolactones", Phil. Trans. R. Soc. A. 2017, 375, 2101/1-2101/14, (invited contribution to theme issue "Frustrated Lewis Pair Chemistry").

 
PB136.jpg
 
 

150. Wang, Y.; Bailey, T. S.; Hong, M.;* Chen, E. Y.-X.* "Stereoregular Brush Polymers and Graft Copolymers by Chiral Zirconocene-Mediated Coordination Polymerization of P3HT Macromers", Polymers 2017, 9, 139/1-139/15.(invited contribution).

 
2017_Polymers TOC.png
 
 

149. Vidal, F.; Chen, E. Y.-X.* "Precision Polymer Synthesis via Chemoselective, Stereoselective, and Living/Controlled Polymerization of Polar Divinyl Monomers", Synlett. 2017, 39 1028-1039 (invited Account).

PB135.jpg
 

148. Wang, Q.; Zhao, W.; He, J.; Zhang, Y.;* Chen, E. Y.-X. "Living Ring-Opening Polymerization of Lactones by N-Heterocyclic Olefin/Al(C6F5)3 Lewis Pairs: Structures of Intermediates, Kinetics, and Mechanism", Macromolecules 2017, 50, 123-136.

PB133.jpg
 

2016

147. Chen, J.; Gowda, R. R.; He, J.; Zhang, Y.; Chen, E. Y.-X.* "Controlled or High-Speed Group Transfer Polymerization by Silyl Ketene Acetals without Catalyst", Macromolecules 2016, 49, 8075-8087.

 

146. Mou, Z.; Chen, E. Y.-X.* "Polyesters and Poly(ester-urethane)s from Bio-based Difuranic Polyols", ACS Sustainable Chem. Eng. 2016, 4, 7118-7129.

 

145. Tang, X.; Hong, M.; Falivene, L.; Caporaso, L.; Cavallo, L.;* Chen, E. Y.-X.* "The Quest for Converting Biorenewable Bifunctional α-Methylene-γ-butyrolactone into Degradable and Recyclable Polyester: Controlling Vinyl-Addition/Ring-Opening/Cross-Linking Pathways", J. Am. Chem. Soc. 2016, 138, 14326-14337.

 

144. Wilson, J.; Chen, E. Y.-X.* "Organocatalytic Cross-coupling of Bio-furanics to Multifunctional Difuranic C11 Building Blocks", ACS Sustainable Chem. Eng. 2016, 4, 4927-4936.

 

143. Yan, B.; Zang, H.;* Jiang, Y.; Yu, S.; Chen, E. Y.-X. "Recyclable Montmorillonite-supported Thiazolium Ionic Liquids for High-yielding and Solvent-free Upgrading of furfural and 5-Hydroxymethylfurfural to C10 and C12 Furoins", RSC Adv. 2016, 6, 76707-76715.

 

142. Vidal, F.; Falivene, L.; Caporaso, L.; Cavallo, L.;* Chen, E. Y.-X.* " Robust Crosslinked Stereocomplexes and C60 Inclusion Complexes of Vinyl-Functionalized Stereoregular Polymers Derived from Chemo/Stereoselective Coordination Polymerization", J. Am. Chem. Soc. 2016, 138, 9533-9547.

 

141. Gowda, R. R.; Chen, E. Y.-X.* "Organocatalytic and Chemoselective Polymerization of Multivinyl-Functionalized γ-Butyrolactones", ACS Macro Lett. 2016, 5, 772-776.

 

140. Chen, J.; Falivene, L.;* Caporaso, L.; Cavallo, L.; Chen, E. Y.-X.* "Selective Reduction of CO2 to CH4 by Tandem Hydrosilylation with Mixed Al/B Catalysts", J. Am. Chem. Soc. 2016, 138, 5321-5333.

 

139. Hong, M.; Chen, E. Y.-X.* "Towards Truly Sustainable Polymers: Metal-Free Recyclable Polyester from Bio-renewable Non-Strained γ-Butyrolactone", Angew. Chem. Int. Ed. 2016, 55, 4188-4193. (designated Hot article)

 
 
 

138. Hong, M.; Tang, X.; Falivene, L.; Caporaso, L.; Cavallo, L.;* Chen, E. Y.-X.* "Proton-Transfer Polymerization by N-Heterocyclic Carbenes: Monomer and Catalyst Scopes and Mechanism for Converting Dimethacrylates into Unsaturated Polyesters", J. Am. Chem. Soc. 2016, 138, 2021-2035.

 
 
 

137. Hong, M.; Chen, E. Y.-X.* "Completely Recyclable Biopolymers with Linear and Cyclic Topologies via Ring-Opening Polymerization of γ-Butyrolactone", Nat. Chem. 2016, 8, 42-49.

 

136. Mou, Z.; Feng, S.; Chen, E. Y.-X.* "Bio-based Difuranic Polyol Monomers and Their Derived Linear and Cross-linked Polyurethanes", Polym. Chem. 2016, 7, 1593-1602.

 

135. Gowda, R. R.; Chen, E. Y.-X.* "Recyclable Earth-Abundant Metal Nanoparticle Catalysts for Selective Transfer Hydrogenation of Levulinic Acid to Produce γ-Valerolactone", ChemSusChem. 2016, 9, 181-185.

 

134. Chen, J.; Chen, E. Y.-X.* "Unsolvated Al(C6F5)3: Structural Features and Electronic Interaction with Ferrocene", Dalton Trans. 2016, 45, 6105-6110 (designated Hot article & invited contribution to the themed issue on the Main-Group Transformations).

 

2015

Tang, J.; Chen, E. Y.-X.* "Organopolymerization of Naturally Occurring Tulipalin B: A Hydroxyl-Functionalized Methylene Butyrolactone", Org. Chem. Front. 2015, 2, 1625-1631. (invited contribution to the themed issue on Carbenes for Today).

 

Wang, Lu.; Chen, E. Y.-X.* "Recyclable Supported Carbene Catalysts for High-Yielding Self-Condensation of Furaldehydes into C10 and C12 Furoins", ACS Catal. 2015, 5, 6907-6917.

 

Wang, Lu.; Chen, E. Y.-X.* "An Interchangeable Homogeneous <=> Heterogeneous Catalyst System for Furfural Upgrading", Green Chem. 2015, 17, 5149-5153.

 

Zhu, J.-B.; Chen, E. Y.-X.* "From meso-Lactide to Isotactic Polylactide: Epimerization by B/N Lewis Pairs and Kinetic Resolution by Organic Catalysts", J. Am. Chem. Soc. 2015, 137, 12506-12509.

 

Vidal, F.; Gowda, R. R.; Chen, E. Y.-X.* "Chemoselective, Stereospecific, and Living Polymerization of Polar Divinyl Monomers by Chiral Zirconocenium Catalysts", J. Am. Chem. Soc. 2015, 137, 9469-9480.

 

Chen, J.; Chen, E. Y.-X.*"Reactivity of Amine/E(C6F5)3 (E = B, Al) Lewis Pairs Toward Linear and Cyclic Acrylic Monomers: Hydrogenation vs. Polymerization", Molecules 2015, 20, 9575-9590.(invited contribution to the special issue on the Reactivity of Frustrated Lewis Pairs).

 

Feng, S.; Schmitt, M.; Chen, E. Y.-X.* "Organocatalytic Polymerization of Furfuryl Methacrylate and Post Diels-Alder Click Reaction to Cross-linked Materials", Macromol. Chem. Phys. 2015, 216, 1421-1430.

 

Magnusson, C. D.; Liu, D.; Chen, E. Y.-X.; Kelland, M. A.* "Non-Amide Kinetic Hydrate Inhibitors: Investigation of the Performance of a Series of Polyvinylphosphonate Diesters", Energy & Fuels 2015, 29, 2336-2341.

 

Chen, J.; Chen, E. Y.-X.* "Elusive Silane∙Alane Complex [Si-H∙∙∙Al]: Isolation, Characterization and Multifaceted Frustrated-Lewis-Pair-Type Catalysis", Angew. Chem. Int. Ed. 2015, 54, 6842-6846.

 

Zang, H.; Chen, E. Y.-X.* "Organocatalytic Upgrading of Furfural and 5-Hydroxymethyl Furfural to C10 and C12 Furoins with Quantitative Yield and Atom-Efficiency", Int. J. Mol. Sci. 2015,16, 7143-7158. (invited contribution to the Green Chemistry and Biorefinery issue).

 

Xu, T.;* Chen, E. Y.-X.* "Silylium Dual Catalysis in Living Polymerization of Methacrylates via In Situ Hydrosilylation of Monomer", J. Polym. Sci. Part A: Polym. Chem. 2015, 53,1895-1903.

 

Miyake, G. M.; Zhang, Y.; Chen, E. Y.-X.* "Polymerizability of exo-Methylene-Lactide Towards Vinyl Addition and Ring Opening", J. Polym. Sci. Part A: Polym. Chem. 2015, 53, 1523-1532.

 

Hong, M.; Chen, E. Y.-X.* "Polymeric Carbon Lewis Base-Acid Adducts: Poly(NHC-C60)", Polym. Chem. 2015, 6, 1741-1750.

 

Chen, J.; Chen, E. Y.-X.* "Lewis Pair Polymerization of Acrylic Monomers by N-Heterocyclic Carbenes and B(C6F5)3", Isr. J. Chem. 2015, 55, 216-225. (invited contribution to the FLP issue).

 

He, J.; Zhang, Y.; Chen, E. Y.-X.* "Cationic Zirconocene-Mediated Catalytic H-Shuttling Polymerization of Polar Vinyl Monomers: Scopes of Catalyst, Chain-Transfer Agent, and Monomer", Macromol. Symp. 2015, 349, 104-114. (invited contribution to Ionic Polymerization issue).

 

2014

Zhang, Y.; Chen, E. Y.-X. "Polymerization of Nonfood Biomass-Derived Monomers to Sustainable Polymers", Top. Curr. Chem. 2014, 353, 185-227. (invited contribution to the topics volume on Selective Catalysis for Renewable Feedstocks and Chemicals).

 

He, J.; Zhang, Y.; Falivene, L.; Caporaso, L.; Cavallo, L.;* Chen, E. Y.-X.* "Chain Propagation and Termination Mechanisms for Polymerization of Conjugated Polar Alkenes by [Al]-based Frustrated Lewis Pairs", Macromolecules 2014, 47, 7765-7774.

 
 
 

Hong, M.; Chen, E. Y.-X.* "Proton-Transfer Polymerization (HTP): Converting Methacrylates into Polyesters by an N-Heterocyclic Carbene", Angew. Chem. Int. Ed. 2014, 53, 11900-11906 .

 

Gowda, R. R.; Caporaso, L.;* Cavallo, L.; Chen, E. Y.-X.* "Unusual C-C Bond Cleavage in the Formation of Amine-bis(phenoxy) Group 4 Benzyl Complexes: Mechanism of Formation and Application to Stereospecific Polymerization", Organometallics 2014, 33, 4118-4130.

 

He, J.; Zhang, Y.; Chen, E. Y.-X.* "Synthesis of Pyridine and 2-Oxazoline-Functionalized Vinyl Polymers by Alane-based Frustrated Lewis Pairs", Synlett. 2014, 25, 1534-1538 (Invited contribution to the FLP Cluster issue).

 

Hong, M.; Chen, E. Y.-X.* "Coordination Ring-Opening Copolymerization of Naturally Renewable α-Methylene-γ-butyrolactone into Unsaturated Polyesters", Macromolecules 2014, 47, 3614-3624.

 

Liu, D.; Chen, E. Y.-X.* "Integrated Catalytic Process for Biomass Conversion and Upgrading to C12 Furoin and Alkane Fuel", ACS Catal. 2014, 4, 1302-1310.

 

Gowda, R. R.; Chen, E. Y.-X.* "Synthesis of β-Methyl-α-Methylene-γ-Butyrolactone from Biorenewable Itaconic Acid", Org. Chem. Front. 2014, 1, 230-234.

 

Xu, T.; Chen, E. Y.-X.* "Probing Site Cooperativity of Frustrated Phosphine/Borane Lewis Pairs by a Polymerization Study", J. Am. Chem. Soc. 2014, 136, 1774-1777.

 
 
 

Schmitt, M.; Falivene, L.; Caporaso, L.; Cavallo, L.;* Chen, E. Y.-X.*"High-Speed Organocatalytic Polymerization of a Renewable Methylene Butyrolactone by a Phosphazene Superbase", Polym. Chem. 2014, 5, 3261-3270 (Invited contribution to the theme issue on Sustainable Polymers).

 

Liu, D.; Chen, E. Y.-X.* "Organocatalysis in Biorefining for Biomass Conversion and Upgrading", Green Chem. 2014, 16, 964-981(Invited critical review).

 

2013

Zhang, Y.; Schmitt M.; Falivene L.; Caporaso L.; Cavallo L.;* Chen, E. Y.-X.* "Organocatalytic Conjugate-Addition Polymerization of Linear and Cyclic Acrylic Monomers by N-Heterocyclic Carbenes: Mechanisms of Chain Initiation, Propagation, and Termination", J. Am. Chem. Soc. 2013, 135, 17925-17942.

 

Liu, D.; Chen, E. Y.-X.* "Diesel and Alkane Fuels from Biomass by Organocatalysis and Metal-Acid Tandem Catalysis", ChemSusChem 2013, 6, 2236-2239.

 

Nakarit, C.; Kelland, M. A.;* Liu, D.; Chen, E. Y.-X. "Cationic Kinetic Hydride Inhibitor Polymers and the Effect on Performance of Incorporating Cationic Monomers into N-Vinyl Lactam Copolymers", Chem. Eng. Sci. 2013, 102, 424-431.

 

Gowda, R. R.; Chen, E. Y.-X.* "Sustainable Polymers from Biomass-Derived α-Methylene-γ-Butyrolactones", Encyclopedia of Polymer Science and Technology 2013, DOI:10.1002/0471440264.pst606, Wiley (Invited contribution).

 

He J.; Zhang, Y.; Chen, E. Y.-X.* "Anionic polymerization of biomass-derived furfuryl methacrylate: Controlling polymer tacticity and thermoreversibility", J. Polym. Sci., Part A: Polym. Chem. 2013, 51, 2793-2803.

 

Gowda R. R.; Chen, E. Y.-X.* "Chiral and achiral (imino)phenoxy-based cationic group 4 non-metallocene complexes as catalysts for polymerization of renewable α-methylene-γ-butyrolactones", Dalton Trans. 2013, 42, 9263-9273 (Invited contribution to the themed issue on Advances in Metal-Catalyzed Polymerization and other Related Transformations).

 

Hu, Y.; Wang, X.; Chen, Y.;* Caporaso, L.;* Cavallo, L.;* Chen, E. Y.-X.* "Rare-Earth Half-Sandwich Dialkyl and Homoleptic Trialkyl Complexes for Rapid and Stereoselective Polymerization of a Conjugated Polar Olefin", Organometallics 2013, 32, 1456-1465.

 

Liu, D.; Chen, E. Y.-X.* "Polymeric Ionic Liquid (PIL)-Supported Recyclable Catalysts for Biomass Conversion into HMF", Biomass & Bioenergy 2013, 48, 181-190.

 

He, J.; Zhang, Y.; Chen, E. Y.-X.* "Chromium(0) Nanoparticles as Effective Catalyst for the Conversion of Glucose into 5-Hydroxymethylfurfural", ChemSusChem 2013, 6, 61-64.

 

Chen, E. Y.-X. "Polymerization by Classical and Frustrated Lewis Pairs",Top. Curr. Chem. 2013, 334, 239-260. (Invited contribution to the topics volume on frustrated Lewis pairs)

 

Chen, E. Y.-X.; Lancaster, S. J. "Weakly Coordinating Anions: Highly Fluorinated Borates", in Comprehensive Inorganic Chemistry II; Chivers, T. Vol. Ed.; Reedijk, J.; Poeppelmeier, K. Chief Eds.; Elsevier: Oxford, 2013; Vol. 1, Chapter 24. 707-754 (Invited contribution)

 

2012

Liu, D.; Zhang, Y.; Chen, E. Y.-X*. "Organocatalytic Upgrading of the Key Biorefining Building Block by a Catalytic Ionic Liquid and N-heterocyclic Carbenes", Green Chem. 2012, 14, 2738-2746 (cover article).

 

Wang, Y.; Zhao, W.; Liu, X.; Cui, D.;* Chen, E. Y.-X.* "Ligand-Free Magnesium Catalyst System: Immortal Polymerization of L-Lactide with High Catalyst Efficiency and Structure of Active Intermediates", Macromolecules 2012, 45, 6957-6965.

 

Escudé, N. C.; Ning, Y.; Chen, E. Y.-X.* "In-situ Stereocomplexing Polymerization of Methyl Methacrylate by Diastereospecific Metallocene Catalyst Pairs", Polym. Chem. 2012, 3, 3247-3255 (cover article).

 

Liu, D.; Chen, E. Y.-X*. "Ubiquitous Aluminum Alkyls and Alkoxides as Effective Catalysts for Glucose to HMF Conversion in Ionic Liquids", Appl. Catal. A: Gen. 2012, 435-436, 78-85.

 

Zhang, Y.; Miyake, G. M.; John, M. G.; Falivene, L.; Caporaso, L.; Cavallo, L.;* Chen, E. Y.-X.* "Lewis Pair Polymerization by Classical and Frustrated Lewis Pairs: Acid, Base and Monomer Scope and Polymerization Mechanism", Dalton Trans.2012, 41, 9119-9134. DOI: 10.1039/C2DT30427A (designated "Hot Article"; Invited contribution to the themed issue on frustrated Lewis pairs)

 

Zhao, W.; Wang, Y.; Liu, X.; Chen, X.; Cui, D.;* Chen, E. Y.-X.* "Protic Compound Mediated Living Cross-Chain-Transfer Polymerization of rac-Lactide: Synthesis of Isotactic (crystalline)-Heterotactic (amorphous) Stereomultiblock Polylactide", Chem. Commun. 2012, 48, 6375-6377

 

Chen, X.; Caporaso, L.; Cavallo, L.;* Chen, E. Y.-X.* "Stereoselectivity in Metallocene-Catalyzed Coordination Polymerization of Renewable Methylene Butyrolactones: from Stereo-random to Stereo-perfect Polymers", J. Am. Chem. Soc. 2012, 134, 7278-7281.

 

Zhang, Y.; Chen, E. Y.-X.* "Conjugate-Addition Organopolymerization: Rapid Production of Acrylic Bioplastics by N-Heterocyclic Carbenes", Angew. Chem. Int. Ed. 2012, 51, 2465-2469

 

Hu, Y.; Miyake, Wang, B.; Cui, D.;* Chen, E. Y.-X.* "Ansa-Rare-Earth Metal Catalysts for Rapid and Stereoselective Polymerizations of Renewable Methylene Methylbutyrolactones", Chem. Eur. J. 2012, 18, 3345-3354

 

2011

Miyake, G. M.; Lida, H.; Hu, H.-Y.; Tang, Z.; Chen, E. Y.-X.; Yashima, E.* "Synthesis of Helical Poly(phenylacetylene)s Bearing Cinchona Alkaloid Pendants and Their Application to Asymmetric Organocatalysis". J. Polym. Sci. Part A, Polym. Chem. 2011, 49, 5192-5198.

 

Zhang, Y.; Gustafson, L. O.; Chen, E. Y.-X.* "Dinuclear Silylium-Enolate Bifunctional Active Species: Remarkable Activity and Stereoselectivity towards Polymerization of Methacrylate and Renewable Methylene Butyrolactone Monomers", J. Am. Chem. Soc. 2011, 133, 13674-13684.

 

Miyake, G. M.; Chen, E. Y.-X.* "Synthesis of Highly Syndiotactic Polymers by Discrete Catalysts or Initiators", Polym. Chem., 2011, 2, 2462-2480 (Invited review).

 

Miyake, G. M.; Chen, E. Y.-X.* "Cinchona Alkaloids as Stereoselective Organocatalysts for the Partial Kinetic Resolution Polymerization of rac-Lactide", Macromolecules 2011, 44, 4116-4124.

 

Hu, Y.; Gustafson, L. O.; Zhu, H.; Chen, E. Y.-X.* "Anionic Polymerization of MMA and Renewable Methylene Butyrolactones by Resorbable Potassium Salts", J. Polym. Sci. Part A. Polym. Chem. 2011, 49, 2008-2017.

 

Zhang, Y.; Caporaso, L.; Cavallo, L.;* Chen, E. Y.-X.* "Hydride-Shuttling Chain Transfer and Stereoregulation in Methacrylate Polymerization Catalyzed by Metallocenium Enolate Metallacycle-Hydridoborate Ion Pairs", J. Am. Chem. Soc. 2011, 133, 1572-1588.

 

2010

Zhang, Y.; Miyake, G. M.; Chen, E. Y.-X.* "Alane-Based Classical and Frustrated Lewis Pairs in Polymer Synthesis: Rapid Polymerization of MMA and Naturally Renewable Methylene Butyrolactones to High Molecular Weight Polymers",Angew. Chem. Int. Ed. 2010, 49, 10158-10162 (designated VIP).

 

Hu, Y.; Xu, X.; Zhang, Y.; Chen, Y.*; Chen, E. Y.-X.* "Polymerization of Naturally Renewable Methylene Butyrolactones by Half-Sandwich Indenyl Rare Earth Metal Dialkyls with Exceptional Activity", Macromolecules 2010, 43, 9328-9336.

 

Miyake, G. M.; DiRocco, D. A.; Liu, Q.; Oberg, K. M.; Bayram, E.; Finke, R. F.; Rovis, T.; Chen, E. Y.-X.* "Stereospecific Polymerization of Chiral Oxazolidinone-Functionalized Alkenes", Macromolecules 2010, 43, 7504-7514.

 

Zhang, Y.; Lay, F.; García-García, P.; List, B.; Chen, E. Y.-X.* "High-Speed Living Polymerization of Polar Vinyl Monomers by Self-Healing Silylium Catalysts", Chem. Eur. J. 2010, 16, 10462-10473.

 

Miyake, G. M.; Newton, S. E.; Mariott, W. R.; Chen, E. Y.-X.* "Coordination Polymerization of Renewable Butyrolactone-Based Vinyl Monomers by Lanthanide and Early Metal Catalysts", Dalton Trans. 2010, 39, 6710-6718 (designated "Hot Article" in the themed issue entitled "New Horizons in Organo-f-Element Chemistry").

 

Miyake, G. M.; Zhang, Y.; Chen, E. Y.-X.* "Living Polymerization of Naturally Renewable Butyrolactone-Based Vinylidene Monomers by Ambiphilic Silicon Propagators", Macromolecules 2010, 43, 4902-4908.

 

Zhang, Y.; Chen, E. Y.-X.* "Silylium-Metallocenium Dications Derived from Hydrosilyl-Bridged Metallocenes and Roles in Polymerization of Polar and Nonpolar Vinyl Monomers", J. Organomet. Chem. 2010, 695, 1464-1471.

 

Del Villano, L.; Kelland, M. A.;* Miyake, G. M.; Chen, E. Y.-X. "The Effect of Polymer Tacticity on the Performance of Poly(N,N-dialkylacrylamide)s as Kinetic Hydrate Inhabitors", Energy and Fuels 2010, 24, 2554-2562.

 

Zhang, Y., Du, H.; Qian, X.;* Chen, E. Y.-X.* "Ionic Liquid-Water Mixtures: Enhanced Kw for Efficient Cellulosic Biomass Conversion", Energy & Fuels 2010, 24, 2410-2417.

 

Zhang, Y.; Ning, Y.; Caporaso, L.; Cavallo, L.;* Chen, E. Y.-X.* "Catalyst-Site-Controlled Coordination Polymerization of Polar Vinyl Monomers to Highly Syndiotactic Polymers", J. Am. Chem. Soc. 2010, 132, 2695-2709.

 

2009

Chen, E. Y.-X.* "Coordination Polymerization of Polar Vinyl Monomers by Single-Site Metal Catalysts", Chem. Rev. 2009, 109, 5157-5214 (Invited contribution to the thematic issue on Frontiers in Polymer Synthesis).

 

Chen, E. Y.-X.* "Transformation of Polymerization of Polar Vinyl Monomers by Discrete and Hybrid Metal Catalysts", Dalton Trans. 2009, 8784-8793 (Invited Perspective to the themed issue on Metal-Catalysed Polymerisation).

 

Escudé N. C.; Chen, E. Y.-X.* "Stereoregular Methacrylate-POSS Hybrid Polymers: Syntheses and Nanostructured Assemblies", Chem. Mater. 2009, 21, 5743-5753.

 

Miyake, G. M.; Caporaso, L.; Cavallo, L.;* Chen, E. Y.-X.* "Coordination-Addition Polymerization and Kinetic Resolution of Methacrylamides by Chiral Metallocene Catalysts", Macromolecules 2009, 42, 1462-1471.

 

Chen, E. Y.-X.* "Ion-Paring Polymerization", Comments Inorg. Chem. 2009, 30, 7-27 (Invited contribution).

 

2008

Ning, Y.; Zhang, Y.; Rodriguez-Delgado, A.; and Chen, E. Y.-X.* "Neutral Metallocene Ester Enolate and Non-Metallocene Alkoxy Complexes of Zirconium for Catalytic Ring-Opening Polymerization of Cyclic Esters", Organometallics 2008, 27, 5632-5640.

 

Ning, Y.; Caporaso, L.; Correa, A.; Gustafson, L. O.; Cavallo, L.;* and Chen, E. Y.-X.* "Syndioselective MMA Polymerization by Group 4 Constrained Geometry Catalysts: A Combined Experimental and Theoretical Study", Macromolecules 2008, 41, 6910-6919.

 

Zhang, Y.; Chen, E. Y.-X.* "Structure-Reactivity Relationships in Bimolecular-Activated Monomer Polymerization of (Meth)acrylates Using Oxidatively Activated Group 14 Ketene Acetals", Macromolecules 2008, 41, 6353-6360.

 

Miyake, G. M.; Chen, E. Y.-X.* "Metallocene-Mediated Asymmetric Coordination Polymerization of Polar Vinyl Monomers to Optically Active, Stereoregular Polymers", Macromolecules 2008, 41, 3405-3416.

 

Ning, Y.; Chen, E. Y.X.* "Metallocene-Catalyzed Polymerization of Methacrylates to Highly Syndiotactic Polymers at High Temperatures," J. Am. Chem. Soc. 2008, 130, 2463-2465.

 

Zhang, Y.; Chen, E. Y.-X.* "Controlled Polymerization of Methacrylates to High Molecular Weight Polymers Using Oxidatively Activated Group Transfer Polymerization Initiators", Macromolecules 2008, 41, 36-42.

 

2007

Zhu, H.; Chen, E. Y.-X.* "Group 13 and Lanthanide Complexes Supported by Tridentate Tripodal Triamine Ligands: Structural Diversity and Polymerization Catalysis," Organometallics 2007, 26, 5395-5405.

 

Ning, Y.; Zhu, H.; Chen, E. Y.-X.* "Remarkable Lewis Acid Effects on Polymerization of Functionalized Alkenes by Metallocene and Lithium Ester Enolates", J. Organomet. Chem. 2007, 692, 4535-4544 (Invited contribution to the special issue in honor of G. Erker).

 

Miyake, G. M.; Mariott, W. R.; Chen, E. Y.-X.* "Asymmetric Coordination Polymerization of Acrylamides by Enantiomeric Metallocenium Ester Enolate Catalysts", J. Am. Chem. Soc. 2007, 129, 6724-6725.

 

Mariott, W. R.; Escudé, N. C.; Chen, E. Y.-X.* "Stereoregular P(MMA)-Clay Nanocomposites by Metallocene Catalysts: In Situ Synthesis and Stereocomplex Formation", J. Polym. Sci. Part A: Polym. Chem. 2007, 45, 2581-2592 (a cover page article).

 

Zhu, H.; Chen, E. Y.-X.* "Tripodal Amido Boron and Aluminum Complexes", Inorg. Chem. 2007, 46, 1481-1487.

 

2006

Chen, E. Y.-X.; Rodriguez-Delgado, A. "Complexes of Zirconium and Hafnium in the Oxidation State IV" in Comprehensive Organometallic Chemistry III; Bochmann, M. Vol. Ed.; Mingos, M. P.; Crabtree, R. H. Chief Eds.; Elsevier: Oxford, 2006; Vol. 4, pp 759-1004, 2006 (an invited contribution).

 

Garner, L. E.; Zhu, H.; Hlavinka, M. L.; Hagadorn, J. R.; Chen, E. Y.-X.* "Cationic Zinc Enolates as Highly Active Catalysts for Acrylate Polymerization", J. Am. Chem. Soc. 2006, 128, 14822-14823.

 

Ning, Y.; Chen, E. Y.-X.* "Diastereospecific Ion-Pairing Polymerization of Functionalized Alkenes by Metallocene/Lewis Acid Hybrid Catalysts", Macromolecules 2006, 39, 7204-7215.

 

Mariott, W. R.; Gustafson, L. O.; Chen, E. Y.-X.* "Activation of Tantalocene(V) Alkyl and Alkylidene Complexes with Strong Organo-Lewis Acids and Application to Polymerization Catalysis", Organometallics 2006, 25, 3721-3729.

 

Rodriguez-Delgado, A.; Mariott, W. R.; Chen, E. Y.-X.* "Synthesis and MMA Polymerization of Chiral ansa-Zirconocene Ester Enolate Complexes with C2- and Cs-Ligation", J. Organomet. Chem. 2006, 691, 3490-3497.

 

Mariott, W. R.; Rodriguez-Delgado, A.; Chen, E. Y.-X.* "Chain Termination and Transfer Reactions in the Acrylate Polymerization by a Monometallic Chiral Zirconocenium Catalyst System", Macromolecules 2006, 39, 1318-1327.

 

2005

Mariott, W. R.; Chen, E. Y.-X.* "Mechanism and Scope of Stereospecific Polymerization of Acrylamides by Chiral Zirconocenium Ester and Amide Enolates", Macromolecules 2005, 38, 6822-6832.

 

Ning, Y.; Cooney, M. J.; Chen, E. Y.-X.* "Polymerization of MMA by Oscillating Zirconocene Catalysts, Diastereomeric Zirconocene Mixtures, and Diastereospecific Metallocene Pairs", J. Organomet. Chem. 2005, 690, 6263-6270 (an invited contribution).

 

Rodriguez-Delgado, A.; Chen, E. Y.-X.* "Mechanistic Studies of Stereospecific Polymerization of Methacrylates Using a Cationic, Chiral ansa-Zirconocene Ester Enolate", Macromolecules 2005, 38, 2587-2594.

 

Rodriguez-Delgado, A.; Chen, E. Y.-X.* "Single-Site Anionic Polymerization. Monomeric Ester Enolaluminate Propagator Synthesis, Molecular Structure, and Polymerization Mechanism", J. Am. Chem. Soc. 2005, 127, 961-974.

 

2004

Rodriguez-Delgado, A.; Chen, E. Y.-X.* "Ligand Exchange and Abstraction Reactions Involving Titanium Isopropoxide with Tris(pentafluorophenyl)borane and -alane: Ramifications for Ring-Opening Polymerization of Propylene Oxide", Inorg. Chimi. Acta 2004, 357, 3911-3919 ( an invited contribution to the special issue in honor of T. J. Marks).

 

Mariott, W. R.; Chen, E. Y.-X.* "Stereospecific, Coordination Polymerization of Acrylamides by Chiral ansa-Metallocenium Alkyl and Ester Enolate Cations", Macromolecules 2004, 37, 4741-4743.

 

Chen, E. Y.-X. "Stereospecific Polymerization of Methacrylates by Metallocene and Related Catalysts", J. Polym. Sci. Part A: Polym. Chem. 2004, 42, 3395-3403 ( an invited Highlight and cover-page article).

 

Rodriguez-Delgado, A.; Mariott, W. R.; Chen, E. Y.-X.* "Living and Syndioselective Polymerization of Methacrylates by Constrained Geometry Titanium Alkyl and Enolate Complexes", Macromolecules 2004, 37, 3092-3100.

 

Bolig, A. D.; Chen, E. Y.-X.* " Ansa-Zirconocene Ester Enolates: Synthesis, Structure, Reaction with Organo-Lewis Acids, and Application to Polymerization of Methacrylates", J. Am. Chem. Soc. 2004, 126, 4897-4906.

 

Chen, E. Y.-X.,* Campbell, R. E., Jr.; Devore, D. D.*, Green, D. P.; Link, B.; Soto, J.; Wilson, D. R.; Abboud, K. A. "Divalent Ansa-Zirconocenes: Stereoselective Synthesis and High Activity for Propylene Polymerization", J. Am. Chem. Soc. 2004, 126, 42-43.

 

2003

Mariott, W. R. Chen, E. Y.-X.* "Stereochemically Controlled PMMA-Exfoliated Silicate Nanocomposites Using Intergallery-Anchored Metallocenium Cations", J. Am. Chem. Soc. 2003, 125, 15726-15727.

 

Jin, J.; Mariott, W. R.; Chen, E. Y.-X.* "Polymerization of Methyl Methacrylate by Metallocene Imido Complexes and Tris(pentafluorophenyl)alane", J. Polym. Sci. Part A: Polym. Chem. 2003, 41, 3132-3142.

 

Mariott, W. R.; Hayden, L. M.; Chen, E. Y.-X.* "Olefin Copolymerization and Polymerization of Methyl Methacrylate Catalyzed by Tantalum(V)-Based Complexes" in Beyond Metallocenes. Next-Generation Polymerization Catalysts; Patil, A. O.; Hlatky, G. G. Eds.; ACS Symp. Ser. 2003, 857, 101-111 ( an invited contribution).

 

Chakraborty, D.; Rodriguez, A.; Chen, E. Y.-X.* "Catalytic Ring-Opening Polymerization of Propylene Oxide by Organoborane and Aluminum Lewis Acids", Macromolecules 2003, 36, 5470-5481.

 

Chen, E. Y.-X.;* Cooney, M. J. "Amphicatalytic Polymerization: Synthesis of Stereomultiblock Poly(methyl methacrylate) with Diastereospecific Ion Pairs", J. Am. Chem. Soc. 2003, 125, 7150-7151.

 

Chakraborty, D.; Chen, E. Y.-X.* "Chiral Amido Aluminum and Zinc Alkyls: A Synthetic, Structural, and Polymerization Study", Organometallics 2003, 22, 769-774.

 

Chakraborty, D.; Chen, E. Y.-X.* "First Isolation and Structural Characterization of Triarylaluminum-Water and -Methanol Complexes", Organometallics 2003, 22, 207-210.

 

2002

Jin, J.; Chen, E. Y.-X.* "Stereoblock Copolymerization of Propylene and Methyl Methacrylate With Single-Site Metallocene Catalysts", Macromol. Chem. Phys. 2002, 203, 2329-2333.

 

Chakraborty, D.; Chen, E. Y.-X.* "Chlorobis(pentafluorophenyl)alane: Synthesis, Crystal Structure, and Polymerization Catalysis", Inorg. Chem. Commun. 2002, 5, 698-701.

 

Bolig, A. D.; Chen, E. Y.-X.* "Isotactic- b-Syndiotactic Stereoblock Poly(methyl methacrylate) by Chiral Metallocene/Lewis Acid Hybrid Catalysts", J. Am. Chem. Soc. 2002, 124, 5612-5613.

 

Jin, J.; Wilson, D. R.; Chen, E. Y.-X.* "Monoalkyl, Chiral-at-Metal 'Constrained Geometry ' Complexes as Efficient & alpha-Olefin and Methyl Methacrylate Polymerization Catalysts", Chem. Commun. 2002, 708-709.

 

Chakraborty, D.; Chen, E. Y.-X.* "Neutral, Three-Coordinate, Chelating Diamide Aluminum Complexes: Catalysts/Initiators for Synthesis of Telechelic Oligomers and High Polymers", Organometallics 2002, 21, 1438-1442.

 

Feng, S.; Roof, G. R.; Chen, E. Y.-X.* "Tantalum(V)-Based Metallocene, Half-Metallocene, and Non-Metallocene Complexes as Ethylene-1-Octene Copolymerization and Methyl Methacrylate Polymerization Catalysts", Organometallics 2002, 21, 832-839.

 

Chakraborty, D.; Chen, E. Y.-X.* "Neutral Olefin Polymerization Activators as Highly Active Catalysts for ROP of Heterocyclic Monomers and for Polymerization of Styrene", Macromolecules 2002, 35, 13-15.

 

Jin, J.; Chen, E. Y.-X.* "Chiral ansa-Titanocene Imido Complexes: Novel Synthesis and Effective Initiator for Syndiospecific Polymerization of MMA", Organometallics 2002, 21, 13-15.

 

Abboud, K. A.;* Nickias, P. N.; Chen, E. Y.-X. "A Dimeric Constrained-Geometry Titanium Complex Linked by Double Ti-CH 2-Al-CH 2 Heterocycles", Acta Cryst. 2002, C58, m41-42.

 

2001

Bolig, A. D.; Chen, E. Y.-X.* "Reversal of Polymerization Stereoregulation in Anionic Polymerization of MMA by Chiral Metallocene and Non-Metallocene Initiators: A New Reaction Pathway for Metallocene-Initiated MMA Polymerization", J. Am. Chem. Soc. 2001, 123, 7943-7944.

 

Chen, E. Y.-X.;* Kruper, W. J.; Roof, G.; Wilson, D. R. "Double Activation of Constrained Geometry and ansa-Metallocene Group 4 Metal Dialkyls: Synthesis, Structure, and Olefin Polymerization Study of Mono- and Dicationic Aluminate Complexes", J. Am. Chem. Soc. 2001, 123, 745-746.

(One-page highlights on this publication were reported in Chemical and Engineering News, 2001, 79(8), 57. This research was also reviewed as one of the three highlights in polymer chemistry for year 2001: Chemical and Engineering News, 2001, 79(50), 54.)

 

Abboud, K. A.;* Nickias, P. N.; Chen, E. Y.-X. "{ N-[Dimethyl(η 5-2,3,4,6-tetramethyl-indenyl)silyl]Cyclobutylamido-κN}-(η 4-1,4-diphenyl-1,3-butadiene) Titanium(II)", Acta Cryst. 2001, C57, 1408-1409.

 

2000

Chen, E. Y.-X.;* Abboud, K. A. 'Unusual Weakly Coordinating Anion Reactivity in Metallocene Chemistry. Formation of Tantalocene Cation-Dinuclear Anion Pairs ", Organometallics 2000, 19, 5541-5543.

 

Chen, E. Y.-X.;* Marks, T. J.* "Cocatalyst for Metal-Catalyzed Olefin Polymerization: Activators, Activation Processes, and Structure-Activity Relationships ", Chem. Rev. 2000, 100, 1391-1434 ( an invited contribution).

 

Klosin, J.;* Roof, G.; Chen, E. Y.-X.;* Abboud, K. A. "Ligand Exchange and Alkyl Abstraction Involving (Perfluoroaryl)boranes and -alanes with Aluminum and Gallium Alkyls ", Organometallics 2000, 19, 4684-4686.

 

Before 2000

Postdoctoral, Graduate, and Undergraduate Research Publications

Chen, Y.-X.; Metz, M. V.; Li, L.; Stern, C. L.; Marks, T. J.* "Sterically Encumbered (Perfluoroaryl) Borane and Aluminate Cocatalysts for Tuning Cation-Anion Ion Pair Structure and Reactivity in Metallocene Polymerization Processes. A Synthetic, Structural, and Polymerization Study ", J. Am. Chem. Soc. 1998, 120, 6287-6305.

 

Chen, Y.-X.; Fu, P.; Stern, C. L.; Marks, T. J.* "A Novel Phenolate Constrained Geometry Catalyst System. Efficient Synthesis, Structural Characterization, and α-Olefin Polymerization Catalysis", Organometallics 1997, 16, 5958-5963.

 

Chen, Y.-X.; Stern, C. L.; Marks, T. J.* "Very Large Counteranion Modulation of Cationic Metallocene Polymerization Activity and Stereoregulation by a Sterically Congested (Perfluoroaryl)fluoroaluminate", J. Am. Chem. Soc. 1997, 119, 2582-2583.

 

Chen, Y.-X.; Marks, T. J.* "Constrained Geometry Dialkyl Catalysts. Highly Efficient Synthesis, C-H Bond Activation Chemistry, Monomer-Dimer Equilibration, and α-Olefin Polymerization Catalysis", Organometallics 1997, 16, 3649-3657.

 

Chen, Y.-X.; Stern, C. L.; Yang, S.; Marks, T. J.* "Organo-Lewis Acids as Cocatalysts in Cationic Metallocene Polymerization Catalysis. Unusual Characteristics of Sterically Encumbered Tris(perfluorobiphenyl)borane", J. Am. Chem. Soc. 1996, 118, 12451-12452.

 

Chen, Y.-X.; Rausch, M. D.;* Chien, J. C. W.* " C2v- and C 2 -Symmetric ansa-Bis(fluorenyl)Zirconocene Catalysts: Synthesis and α-Olefin Polymerization Catalysis", Macromolecules 1995, 28, 5399-5404.

 

Chen, Y.-X.; Rausch, M. D.;* Chien, J. C. W.* "Heptane-Soluble Homogeneous Zirconocene Catalyst: Synthesis of a Single Diastereomer, Polymerization Catalysis and Effect of Silica Supports", J. Polym. Sci. Part A: Polym. Chem. 1995, 33, 2093-2108.

 

Chen, Y.-X.; Rausch, M. D.;* Chien, J. C. W.* "1,3-Propanediyl Silylene-bis-(1-indenyl)dichlorozirconium. Synthesis and Polymerization Catalysis", J. Organomet. Chem. 1995, 487, 29-34.

 

Chen, Y.-X.; Rausch, M. D.;* Chien, J. C. W.* "Silylene-Bridged Fluorenyl-Containing Ligands and Zirconium Complexes with C1 and C s Symmetry: General Synthesis and Olefin Polymerization Catalysis", J. Organomet. Chem. 1995, 497, 1-9.

 

Chen, Y.-X.; Rausch, M. D.;* Chien, J. C. W.* "Stereoselective Synthesis of a Germanium-Bridged Zirconocene for Temperature-Invariant Propylene Polymerization", Organometallics 1994, 13, 748-749.

 

Chen, Y.-X.; Rausch, M. D.;* Chien, J. C. W.* "Indenyl- and Fluorenyl Silanes: Synthesis and Thermal Diastereomerization", Organometallics 1993, 12, 4607-4612.

 

Chen, S. -S.; Chen, Y.-X.; Wang, J. -T.* "Investigation of Reaction Between Fulvenes and α-Naphthyllithium", Sci. China, Ser. B. 1990, 33, 769-776.

 

Chen, S.-S.; Chen, Y.-X.; Wang, J.-T.* "Studies on Ring-Bridged Bis(η 5-cyclopentadienyl) Metal (IV B) Derivatives (I)", Acta Chimica Sinica 1990, 48, 298-301.

 

Chen, S.-S.; Chen, Y.-X.; Wang, J.-T.* "Studies on Ring-Bridged Bis(η 5-cyclopentadienyl) Metal (IV B) and Iron Derivatives (II)", Acta Chimica Sinica 1990, 48, 582-586.

 

Chen, S.-S.; Chen, Y.-X.; Wang, J.-T.* "Reaction of Fulvenes and Aryllithiums", Scientia Sinica, B. 1989, 10, 1014-1019.

 

Issued Patents

Chen, E. Y.-X.; Tang, X. Synthesis of Polymers from Cyclic Diolides. U.S. Pat. 11,629,223 B2, 2023.

 

Chen, E. Y.-X.; Tang, X. “Synthesis of Crystalline Polymers from Cyclic Diolides”, U.S. Pat.10,954,335B2, 2021.

 

Chen, E. Y.-X.; Zhu, J. “Recyclable Polymers Based on Ring-Fused Gamma-Butyrolactones”, U.S. Pat. 10,759,899 B2, 2020.

 

Chen, E. Y.-X.; Hong, M.; Tang, X. “Ring-Opening Polymerization Methods and Recyclable Biorenewable Polyesters”, U.S. Pat. 10,364,319, 2019.

 

Chen, E. Y.-X.; Zhu, J. “Transformation of Meso-Lactide”, U.S. Pat. 10,174,161 B2, 2019.

 

Chen, E. Y.-X.; Wang, L.; Eguchi, Y. “Supported Catalyst for Aldehyde Coupling Reaction, Method for Performing Aldehyde Coupling Reaction, and Method for Regenerating Supported Catalyst for Aldehyde Coupling Reaction”, U.S. Pat. 10,059,700 B2, 2018.

 

Eguchi, Y.; Chen, E. Y.-X.; Wang L. "Bisfuran Dihalide, Method for Producing Bisfuran Dihalide, and Method for Producing Bisfuran Diacid, Bisfuran Diol or Bisfuran Diamine Using Bisfuran Dihalide", U.S. Pat. 9,840,485 B1, 2017.

 

Chen, E. Y.-X.; Liu, D. "Biorefining Compounds and Organocatalytic Upgrading Methods", U.S. Pat. 9,469,626 B2, 2016.

 

Chen, E. Y.-X.; Hu, Y.; Zhang, Y. "Polymerization Catalysts, Methods and Products", U.S. Pat. 9,309,332 B2, 2016.

 

Carnahan, E. M.; Chen, E. Y.; Jacobsen, G. B.; Stevens, J. C. "Supported Modified Alumoxane Catalyst Activator", U.S. Pat. 6,696,379 B1, 2004.

 

Chen, E. Y.; Kruper, W. J. "Dicationic Non-Metallocene Group 4 Metal Complexes", U.S. Pat, 6,683,199 B1, 2004.

 

Chen, E. Y.; Kruper, W. J. "Preparation of Polymerization Catalyst Compositions", U.S. Pat, 6,673,735 B1, 2004.

 

Chen, E. Y.; Kruper, W. J.; Roof, G.; Schwartz, D. J.; Storer, J. W. "Three Coordinate Aluminum Catalyst Activator Composition", U.S. Pat. 6,528,449 B1, 2003.

 

Chen, E. Y.; Roof, G.; Kruper, W. J.; Schwartz, D. J.; Storer, J. W. "Activator Composition Comprising Aluminum Compound Mixture", U.S. Pat. 6,387,838 B2, 2002.

 

Chen, E. Y.; Feng, S.; Graf, D. D.; Patton, J. T.; Wilson, D. R. "Highly Activated Bimetallic Constrained Geometry Catalysts for Olefin Polymerization", U.S. Pat. 6,284,698, 2001.

 

Chen, E. Y.; Kruper, W. J.; Roof, G. "Catalyst Activator Composition", U.S. Pat. 6,214,760 B1, 2001.

 

Chen, E. Y.; Kruper, W. J. "Dinuclear Fluoroaryl Aluminum Alkyl Complexes", U.S. Pat. 6,291,614 B1, 2001.

 

Chen, E. Y. "Ansa-Group 4 Metal Bis(μ-Substituted) Aluminum Metallocenes", U.S. Pat. 6,162,935, 2000.

 

Chen, E. Y.; Campbell, R. E.; Devore, D. D.; Green, D. P.; Patton, J. T.; Soto, J.; Wilson, D. R. "Integrated Process for Preparation of Diene Complexes as Catalysts for Olefin Polymerization", U.S. Pat. 6,136,993, 2000.

 

Chen, E. Y.; Klosin, J.; Kruper, W. J.; Lapointe, R. E. "Process for Preparing Trifluoroarylaluminum Etherates", U.S. Pat. 6,160,146, 2000.

 

Chen, E. Y.; Kruper, W. J.; Nickias, P. N.; Wilson, D. R. "Ansa-Group 4 Metal Bis(μ-Substituted) Aluminum Complexes", U.S. Pat. 6,140,521, 2000.

 

Chen, E. Y.; Campbell, R. E.; Devore, D. D.; Green, D. P.; Patton, J. T.; Soto, J.; Wilson, D. R. "Integrated Process for Preparation of Diene Complexes", U.S. Pat. 6,127,563, 2000.

 

Chen, E. Y.; Campbell, R. E.; Devore, D. D.; Green, D. P.; Patton, J. T.; Soto, J.; Wilson, D. R. "Diene Complexes of Group 4 Metals and Process of Prepartion", U.S. Pat. 6,084,115, 2000.

 

Marks, T. J.; Chen, Y.-X. "Organoborane Complexes with Metallocenes for Polymerization Catalysts", U.S. Pat. 6,087,460, 2000.

 

Marks, T. J.; Chen, Y.-X. "Synthesis and Use of (Polyfluoroaryl)fluoroanions of Aluminum, Gallium and Indium as Polymerization Cocatalysts", U.S. Pat. 6,130,302, 2000.

 

Marks, T. J., Chen, Y.-X. "Organo-Lewis Acid Cocatalysts for Cationic Homogeneous Ziegler-Natta Olefin Polymerizations", U.S. Pat. 5,856,256, 1999.

 

Marks, T. J.; Chen, Y.-X. "Phenolate Constrained Geometry Polymerization Catalyst and Method for Preparing", U.S. Pat. 5,856,258, 1999.

 

Marks, T. J.; Chen, Y.-X. "Synthesis and Use of (Perfluoroaryl)fluoro-Aluminate Anion", U.S. Pat. 5,854,166, 1998.