1
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Cheng-Tan MDL, Nguyen AN, Gordon CT, Wood ZA, Manjarrez Y, Fieser ME. Choline Halide-Based Deep Eutectic Solvents as Biocompatible Catalysts for the Alternating Copolymerization of Epoxides and Cyclic Anhydrides. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2024; 12:7246-7255. [PMID: 38757124 PMCID: PMC11094800 DOI: 10.1021/acssuschemeng.3c06766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 04/18/2024] [Accepted: 04/19/2024] [Indexed: 05/18/2024]
Abstract
Aliphatic polyesters have received considerable attention in recent years due to their biodegradability and biocompatible, mechanical, and thermal properties that can make them a suitable alternative to today's commercialized polymers. The ring-opening copolymerization (ROCOP) of epoxides and cyclic anhydrides is a route to synthesize a diverse array of polyesters that could be useful in many applications. However, the catalysts used rarely consider biocompatible catalysts in the case that any are left in the polymer. To the best of our knowledge, we report the first example of using deep eutectic solvents (DESs) as biocompatible catalysts for this target ROCOP with polymerization activity for at least six diverse monomer pairs. Choline halide salts are active for this polymerization, with dried salts showing polymerization slower than that of those conducted in air. Hydrogen bonding with water is hypothesized to enhance the rate-determining step of epoxide ring opening. While the presence of water improves the rate of polymerization, it also acts as a chain transfer agent, leading to smaller molar mass polymers than intended. Combining the choline halide salts with urea or ethylene glycol hydrogen bond donors in air led to DES catalysts that reacted similarly to the salts exposed to air. However, when generating these DESs in air-free conditions, they showed similar rates of polymerization without a drop in polymer molar mass. The hydrogen bonding provided by urea and ethylene glycol seems to promote the rate increase without serving as a chain transfer agent. Results reported herein display the promising potential of biocompatible catalyst systems for this ROCOP process as well as introducing the use of hydrogen bonding to enhance polymerization rates.
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Affiliation(s)
| | - Angelyn N. Nguyen
- Department
of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Collette T. Gordon
- Department
of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Zachary A. Wood
- Department
of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Yvonne Manjarrez
- Department
of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Megan E. Fieser
- Department
of Chemistry, University of Southern California, Los Angeles, California 90089, United States
- Wrigley
Institute for Environment and Sustainability, University of Southern California, Los Angeles, California 90089, United States
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2
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Jiang L, Wu Y, Tian X, Xue W, Li H, Kang X, Li B. Mechanistic Insights into the Effects of Ureas and Monomers on the Ring-Opening Alternating Copolymerization of Epoxides and Anhydrides Catalyzed by Organic Base/Urea. Polymers (Basel) 2024; 16:978. [PMID: 38611236 PMCID: PMC11013678 DOI: 10.3390/polym16070978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 03/30/2024] [Accepted: 04/01/2024] [Indexed: 04/14/2024] Open
Abstract
Aliphatic polyester is an important polyester material with good biocompatibility and degradability, which can be synthesized through ring-opening alternating copolymerization (ROAC) of epoxides and anhydrides. Herein, density functional theory (DFT) is used to explore the mechanism of ROAC of epoxides (propylene oxide (PO), styrene oxide (SO), epichlorohydrin (ECH), and cyclohexane oxide (CHO)) and phthalic anhydride (PA) catalyzed by bis(triphenylphosphine) ammonium chloride (PPNCl) and ureas. It was found that the ring-opening polymerization (ROP) of epoxides is the rate-controlling step, and the benzyl alcohol (BnOH) as the initiator has little effect on the polymerization activity, which was consistent with previous experimental results. Calculated comparisons of the ROAC activity of CHO/PA catalyzed by four different ureas indicate that as the Lewis acidity of the urea increased, the energy barriers of the copolymerization increased and the activity decreased. The main reason was that the strong hydrogen-bonding interactions stabilized the key intermediate of the rate-controlling step and inhibited subsequent monomer insertion. Based on this, a series of new ureas with higher catalytic activity were designed by introducing electron-donating substituents. In SO polymerization, increasing the Lewis acidity of urea can improve the SO regioselectivity. In addition, the monomer ECH with CH2Cl shows higher activity of ROAC than PO and SO, which could be ascribed to the fact that the strong electron-withdrawing Cl atom stabilizes the transition state in the rate-controlling step and reduces the reaction energy barrier.
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Affiliation(s)
| | | | | | | | | | - Xiaohui Kang
- College of Pharmacy, Dalian Medical University, Dalian 116044, China; (L.J.); (Y.W.); (X.T.); (W.X.); (H.L.)
| | - Bin Li
- College of Pharmacy, Dalian Medical University, Dalian 116044, China; (L.J.); (Y.W.); (X.T.); (W.X.); (H.L.)
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3
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Luo W, Chen MJ, Wang T, Feng JF, Fu ZC, Deng JN, Yan YW, Wang YZ, Zhao HB. Catalytic polymer self-cleavage for CO 2 generation before combustion empowers materials with fire safety. Nat Commun 2024; 15:2726. [PMID: 38548723 PMCID: PMC10978860 DOI: 10.1038/s41467-024-46756-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 03/08/2024] [Indexed: 04/01/2024] Open
Abstract
Polymeric materials, rich in carbon, hydrogen, and oxygen elements, present substantial fire hazards to both human life and property due to their intrinsic flammability. Overcoming this challenge in the absence of any flame-retardant elements is a daunting task. Herein, we introduce an innovative strategy employing catalytic polymer auto-pyrolysis before combustion to proactively release CO2, akin to possessing responsive CO2 fire extinguishing mechanisms. We demonstrate that potassium salts with strong nucleophilicity (such as potassium formate/malate) can transform conventional polyurethane foam into materials with fire safety through rearrangement. This transformation results in the rapid generation of a substantial volume of CO2, occurring before the onset of intense decomposition, effectively extinguishing fires. The inclusion of just 1.05 wt% potassium formate can significantly raise the limiting oxygen index of polyurethane foam to 26.5%, increase the time to ignition by 927%, and tremendously reduce smoke toxicity by 95%. The successful application of various potassium salts, combined with a comprehensive examination of the underlying mechanisms, underscores the viability of this strategy. This pioneering catalytic approach paves the way for the efficient and eco-friendly development of polymeric materials with fire safety.
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Affiliation(s)
- Wei Luo
- Green Preparation and Recycling Laboratory of Functional Polymeric Materials, College of Science, Xihua University, Chengdu, Sichuan, 610039, China
| | - Ming-Jun Chen
- Green Preparation and Recycling Laboratory of Functional Polymeric Materials, College of Science, Xihua University, Chengdu, Sichuan, 610039, China.
| | - Ting Wang
- Green Preparation and Recycling Laboratory of Functional Polymeric Materials, College of Science, Xihua University, Chengdu, Sichuan, 610039, China
| | - Jin-Feng Feng
- Green Preparation and Recycling Laboratory of Functional Polymeric Materials, College of Science, Xihua University, Chengdu, Sichuan, 610039, China
| | - Zhi-Cheng Fu
- Green Preparation and Recycling Laboratory of Functional Polymeric Materials, College of Science, Xihua University, Chengdu, Sichuan, 610039, China
| | - Jin-Ni Deng
- Green Preparation and Recycling Laboratory of Functional Polymeric Materials, College of Science, Xihua University, Chengdu, Sichuan, 610039, China
| | - Yuan-Wei Yan
- Zhuzhou Times New Material Technology Co., Ltd., Zhuzhou, 412007, China
| | - Yu-Zhong Wang
- The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, China
| | - Hai-Bo Zhao
- The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Chengdu, Sichuan, 610064, China.
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4
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Zhang Q, Hu C, Pang X, Chen X. Multi-Functional Organofluoride Catalysts for Polyesters Production and Upcycling Degradation. CHEMSUSCHEM 2024; 17:e202300907. [PMID: 37735092 DOI: 10.1002/cssc.202300907] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 09/03/2023] [Accepted: 09/21/2023] [Indexed: 09/23/2023]
Abstract
The production and degradation of polyesters are two crucial processes in polyester materials' life cycle. In this work, multi-functional organocatalysts based on fluorides for both processes are described. Organofluorides were developed as catalysts for ring-opening polymerization of lactide (lactone). Compared with a series of organohalides, organofluoride performed the best catalytic reactivity because of the hydrogen bond interaction between F- and alcohol initiator. The Mn values of polyester products could be up to 72 kg mol-1 . With organofluoride catalysts, the ring-opening copolymerization between various anhydrides and epoxides could be established. Furthermore, terpolymerization of anhydride, epoxide, and lactide could be constructed by the self-switchable organofluoride catalyst to yield a block polymer with a strictly controlled polymerization sequence. Organofluorides were also efficient catalysts for upcycling polyester plastic wastes via alcoholysis. Mixed polyester materials could also be hierarchically recycled.
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Affiliation(s)
- Qiao Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, 130022, Changchun, China
| | - Chenyang Hu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, 130022, Changchun, China
| | - Xuan Pang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, 130022, Changchun, China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, 130022, Changchun, China
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5
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Fornaciari C, Lemaur V, Pasini D, Coulembier O. Quasi-alternating copolymerization of oxiranes driven by a benign acetate-based catalyst. Commun Chem 2023; 6:235. [PMID: 37898680 PMCID: PMC10613202 DOI: 10.1038/s42004-023-01031-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 10/17/2023] [Indexed: 10/30/2023] Open
Abstract
Alternating copolymers are distinctly unique in comparison with other copolymers. Herein, an in-depth investigation of the oxyanionic ring-opening copolymerization of propylene oxide (PO) and allyl glycidyl ether (AGE) from benzyl alcohol (BnOH) activated with potassium acetate (KOAc) complexed by 18-crown-6 ether (18C6) is described. We demonstrate that the 18C6/KOAc complex is an efficient and benign catalytic system to promote copolymerization of both oxirane monomers, leading to well-defined polyethers with varied comonomer content and low dispersity values (ƉM < 1.20). Kinetic analysis confirmed the controlled nature of the (co)polymerization process, and the determination of reactivity ratios revealed a quasi-alternating copolymerization profile, according to the Fineman-Ross method. The comparison between the quasi-alternating-type PO/AGE copolymerization and block or gradient copolymerization revealed significant differences, to confirm the different sequence incorporation in the different topological copolymers. These results highlight the great potential of 18C6/KOAc-mediated copolymerization process for the controlled sythesis of a series of copolymer topologies.
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Affiliation(s)
- Charlotte Fornaciari
- Laboratory of Polymeric and Composite Materials (LPCM), Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons, Place du Parc, 20, Mons, 7000, Belgium
- Department of Chemistry, University of Pavia, Viale Taramelli, 10, Pavia, 27100, Italy
| | - Vincent Lemaur
- Laboratory for Chemistry of Novel Materials, Materials Research Institute, University of Mons, Place du Parc, 20, 7000, Mons, Belgium
| | - Dario Pasini
- Department of Chemistry, University of Pavia, Viale Taramelli, 10, Pavia, 27100, Italy.
| | - Olivier Coulembier
- Laboratory of Polymeric and Composite Materials (LPCM), Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons, Place du Parc, 20, Mons, 7000, Belgium.
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6
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Yang Z, Hu C, Gao Z, Duan R, Sun Z, Zhou Y, Pang X, Chen X. Precise Synthesis of Sequence-Controlled Oxygen-Rich Multiblock Copolymers via Reversible Carboxylation of a Commercial Salen-Mn(III) Catalyst. Macromolecules 2023. [DOI: 10.1021/acs.macromol.3c00154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Affiliation(s)
- Zhenjie Yang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
| | - Chenyang Hu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
| | - Zan Gao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
| | - Ranlong Duan
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
| | - Zhiqiang Sun
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
| | - Yanchuan Zhou
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
| | - Xuan Pang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
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7
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Xie H, Zheng L, Feng J, Wang X, Kuang S, Zhou L, Jiang J, Xu Y, Zhao Y, Xu Z. Alkali metal carbonate catalyzed copolymerization of anhydrides and epoxides: a simple, efficient and versatile approach to well-defined alternating polyesters. Polym Chem 2023. [DOI: 10.1039/d2py01507b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Abstract
Readily available and economical alkali metal carbonates have been utilized to catalyze the ROAC of PA and various epoxides to afford polyesters with perfectly alternating sequence distribution, controlled molar masses, and moderate dispersity.
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Affiliation(s)
- Hongyan Xie
- China-Australia Institute for Advanced Materials and Manufacturing, Jiaxing University, Jiaxing 314000, China
- China National Textile and Apparel Council Key Laboratory of Flame Retardancy Finishing of Textile Materials, Soochow University, Suzhou 215123, China
| | - Lanlan Zheng
- School of Biological and Chemical Engineering, Jiaxing University, Jiaxing 314000, China
| | - Jiabing Feng
- China-Australia Institute for Advanced Materials and Manufacturing, Jiaxing University, Jiaxing 314000, China
| | - Xinyu Wang
- School of Biological and Chemical Engineering, Jiaxing University, Jiaxing 314000, China
| | - Suping Kuang
- School of Biological and Chemical Engineering, Jiaxing University, Jiaxing 314000, China
| | - Li Zhou
- School of Biological and Chemical Engineering, Jiaxing University, Jiaxing 314000, China
| | - Jia Jiang
- School of Biological and Chemical Engineering, Jiaxing University, Jiaxing 314000, China
| | - Yaling Xu
- School of Biological and Chemical Engineering, Jiaxing University, Jiaxing 314000, China
| | - Yan Zhao
- College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Zhiguang Xu
- China-Australia Institute for Advanced Materials and Manufacturing, Jiaxing University, Jiaxing 314000, China
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8
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Duan R, Hu C, Liu Y, Bian X, Pang X, Chen X. In Situ Initiation of Epoxides: Activated Metal Salt Catalysts for Cyclic Ester Polymerization. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c03594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Ranlong Duan
- University of Science and Technology of China, Hefei 230027, Anhui, China
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Chenyang Hu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Yanlong Liu
- University of Science and Technology of China, Hefei 230027, Anhui, China
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Xinchao Bian
- University of Science and Technology of China, Hefei 230027, Anhui, China
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Xuan Pang
- University of Science and Technology of China, Hefei 230027, Anhui, China
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Xuesi Chen
- University of Science and Technology of China, Hefei 230027, Anhui, China
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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9
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Fazekas E, Lowy PA, Abdul Rahman M, Lykkeberg A, Zhou Y, Chambenahalli R, Garden JA. Main group metal polymerisation catalysts. Chem Soc Rev 2022; 51:8793-8814. [PMID: 36214205 DOI: 10.1039/d2cs00048b] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
With sustainability at the forefront of current polymerisation research, the typically earth-abundant, inexpensive and low-toxicity main group metals are attractive candidates for catalysis. Main group metals have been exploited in a broad range of polymerisations, ranging from classical alkene polymerisation to the synthesis of new bio-derived and degradable polyesters and polycarbonates via ring-opening polymerisation and ring-opening copolymerisation. This tutorial review highlights efficient polymerisation catalysts based on Group 1, Group 2, Zn and Group 13 metals. Key mechanistic pathways and catalyst developments are discussed, including tailored ligand design, heterometallic cooperativity, bicomponent systems and careful selection of the polymerisation conditions, all of which can be used to fine-tune the metal Lewis acidity and the metal-alkyl bond polarity.
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Affiliation(s)
- Eszter Fazekas
- EaStCHEM School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, UK.
| | - Phoebe A Lowy
- EaStCHEM School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, UK.
| | | | - Anna Lykkeberg
- EaStCHEM School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, UK.
| | - Yali Zhou
- EaStCHEM School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, UK.
| | - Raju Chambenahalli
- EaStCHEM School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, UK.
| | - Jennifer A Garden
- EaStCHEM School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, UK.
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10
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Gao T, Xia X, Tajima K, Yamamoto T, Isono T, Satoh T. Polyether/Polythioether Synthesis via Ring-Opening Polymerization of Epoxides and Episulfides Catalyzed by Alkali Metal Carboxylates. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tianle Gao
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Xiaochao Xia
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
- School of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400054, China
| | - Kenji Tajima
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Takuya Yamamoto
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Takuya Isono
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Toshifumi Satoh
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
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11
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Chen Y, Wang Z, Liu S, Zhang G. Modified niobic acid via acidification by various liquid acids for dehydration of succinic acid to succinic anhydride. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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12
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Wang J, Zhu Y, Li M, Wang Y, Wang X, Tao Y. Tug‐of‐War between Two Distinct Catalytic Sites Enables Fast and Selective Ring‐Opening Copolymerizations. Angew Chem Int Ed Engl 2022; 61:e202208525. [DOI: 10.1002/anie.202208525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Jianqun Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Yinuo Zhu
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Maosheng Li
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P. R. China
| | - Yanchao Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P. R. China
| | - Youhua Tao
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Renmin Street 5625 Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
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13
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Wang J, Zhu Y, Li M, Wang Y, Wang X, Tao Y. Tug‐of‐war between Two Distinct Catalytic Sites Enables Fast and Selective Ring‐opening Copolymerizations. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jianqun Wang
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences Key Laboratory of Polymer Ecomaterials CHINA
| | - Yinuo Zhu
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences Key Laboratory of Polymer Ecomaterials CHINA
| | - Maosheng Li
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences Key Laboratory of Polymer Ecomaterials CHINA
| | - Yanchao Wang
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences Key Laboratory of Polymer Ecomaterials CHINA
| | - Xianhong Wang
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences: Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences Key Laboratory of Polymer Ecomaterials CHINA
| | - Youhua Tao
- Chang Chun Institute of Applied Chemistry Chinese Academy of Sciences Key Laboratory of Polymer Ecomaterials 5625 Renmin StreetChangchun中国 130022 Changchun CHINA
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14
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Wang L, Zhou Q, Yang H. A Facile Fabrication of Lysosome-Targeting pH Fluorescent Nanosensor Based on PEGylated Polyester Block Copolymer. Polymers (Basel) 2022; 14:polym14122420. [PMID: 35745996 PMCID: PMC9231249 DOI: 10.3390/polym14122420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/07/2022] [Accepted: 06/09/2022] [Indexed: 02/04/2023] Open
Abstract
A novel lysosome-targeting PEGylated polyester-based fluorescent pH nanosensor is fabricated by the combination of ring-opening copolymerization (ROCOP), side-group modification and subsequent self-assembly. First, a key target amphiphilic copolymer carrier for rhodamine (Rh) pH indicator is synthesized in a facile manner by the ROCOP of phthalic anhydride with allyl glycidyl ether using mPEG-OH and t-BuP1/Et3B as the macroinitiator and binary catalyst, respectively. Subsequently, Rh moieties are covalently attached on the polymer chain with controllable grafting degree via an efficient thiol-ene click reaction. Concurrently, the effect of catalyst systems and reaction conditions on the catalytic copolymerization performance is presented, and the quantitative introduction of Rh is described in detail. Owing to its amphiphilic characteristics, the rhodamine-functionalized polyester-based block copolymer can self-assemble into micelles. With the covalent incorporation of Rh moieties, the as-formed micelles exhibit excellent absorption and fluorescence-responsive sensitivity and selectivity towards H+ in the presence of various metal cations. Moreover, the as-prepared micelles with favorable water dispersibility, good pH sensitivity and excellent biocompatibility also display appreciable cell-membrane permeability, staining ability and pH detection capability for lysosomes in living cells. This work provides a new strategy for the facile synthesis of novel biocompatible polymeric fluorescent pH nanosensors for the fluorescence imaging of lysosomal pH changes.
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Affiliation(s)
- Lijun Wang
- School of Materials Science and Engineering, Henan Joint International Research Laboratory of Nanocomposite Sensing Materials, Anyang Institute of Technology, Anyang 455000, China
- Correspondence:
| | - Qiang Zhou
- CAS Key Laboratory of Soft Matter Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China; (Q.Z.); (H.Y.)
| | - Haiyang Yang
- CAS Key Laboratory of Soft Matter Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China; (Q.Z.); (H.Y.)
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15
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Fornaciari C, Pasini D, Coulembier O. Controlled Oxyanionic Polymerization of Propylene Oxide: Unlocking the Molecular-Weight Limitation by a Soft Nucleophilic Catalysis. Macromol Rapid Commun 2022; 43:e2200424. [PMID: 35686832 DOI: 10.1002/marc.202200424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 05/30/2022] [Indexed: 11/07/2022]
Abstract
The oxyanionic ring-opening polymerization of propylene oxide (PO) from an exogenous alcohol activated with benign (complexed) metal-alkali carboxylates is described. The equimolar mixture of potassium acetate (KOAc) and 18-crown-6 ether (18C6) is demonstrated to be the complex of choice for preparing poly(propylene oxide) (PPO) in a controlled manner. In the presence of 18C6/KOAc, hydrogen-bonded alcohols act as soft nucleophiles promoting the PO SN 2 process at room temperature and in solvent-free conditions while drastically limiting the occurrence of parasitic hydrogen abstraction generally observed during the anionic ROP of PO. The resulting PPO displays predictable and unprecedented molar masses (up to 20 kg mol-1 ) with low dispersities (ĐM < 1.1), rendering the 18C6/KOAc complex the most performing activator for the oxyanionic polymerization of PO reported to date. Preliminary studies on the preparation of block and statistical copolyethers are also reported.
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Affiliation(s)
- Charlotte Fornaciari
- Laboratory of Polymeric and Composite Materials (LPCM), Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons, Place du Parc, 20, Mons, 7000, Belgium.,Department of Chemistry, University of Pavia, Viale Taramelli, 10, Pavia, 27100, Italy
| | - Dario Pasini
- Department of Chemistry, University of Pavia, Viale Taramelli, 10, Pavia, 27100, Italy
| | - Olivier Coulembier
- Laboratory of Polymeric and Composite Materials (LPCM), Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons, Place du Parc, 20, Mons, 7000, Belgium
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16
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Metal-free Lewis pairs catalysed synthesis of fluorescently labelled polyester-based amphiphilic polymers for biological imaging. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111033] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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17
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Chen XL, Wang B, Song DP, Pan L, Li YS. One-Step Synthesis of Sequence-Controlled Polyester-block-Poly(ester-alt-thioester) by Chemoselective Multicomponent Polymerization. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02303] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiao-Lu Chen
- Tianjin Key Laboratory of Composite & Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Bin Wang
- Tianjin Key Laboratory of Composite & Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Dong-Po Song
- Tianjin Key Laboratory of Composite & Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Li Pan
- Tianjin Key Laboratory of Composite & Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Yue-Sheng Li
- Tianjin Key Laboratory of Composite & Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
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18
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You H, Wang E, Cao H, Zhuo C, Liu S, Wang X, Wang F. From Impossible to Possible: Atom‐Economic Polymerization of Low Strain Five‐Membered Carbonates. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202113152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Huai You
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry CAS Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Enhao Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry CAS Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Han Cao
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry CAS Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Chunwei Zhuo
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry CAS Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Shunjie Liu
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry CAS Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry CAS Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Fosong Wang
- Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry CAS Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
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19
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Plajer AJ, Williams CK. Heterocycle/Heteroallene Ring‐Opening Copolymerization: Selective Catalysis Delivering Alternating Copolymers. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202104495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alex J. Plajer
- Oxford Chemistry Chemical Research Laboratory 12 Mansfield Road Oxford OX1 3TA UK
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20
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Shaw M, Bates M, Jones MD, Ward BD. Metallocene catalysts for the ring-opening co-polymerisation of epoxides and cyclic anhydrides. Polym Chem 2022. [DOI: 10.1039/d2py00335j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ring-opening co-polymerization (ROCOP) of epoxides and cyclic anhydrides is a versatile route to new polyesters. The vast number of monomers that are readily available means that an effectively limitless...
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21
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Diment WT, Williams CK. Chain end-group selectivity using an organometallic Al( iii)/K( i) ring-opening copolymerization catalyst delivers high molar mass, monodisperse polyesters. Chem Sci 2022; 13:8543-8549. [PMID: 35974772 PMCID: PMC9337735 DOI: 10.1039/d2sc02752f] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 06/10/2022] [Indexed: 11/21/2022] Open
Abstract
Polyesters are important plastics, elastomers and fibres; efficient and selective polymerizations making predictable, high molar mass polymers are required. Here, a new type of catalyst for the ring-opening polymerization (ROCOP) of epoxides and anhydrides combines unusually high chain end-group selectivity, fast rates, and good molar mass control. The organometallic heterodinuclear Al(iii)/K(i) complex, applied with a diol, is tolerant to a range of epoxides/phthalic anhydride and produces only α,ω-hydroxyl telechelic polyesters with molar masses from 6–91 kg mol−1, in all cases with monomodal distributions. As proof of its potential, high molar mass poly(vinyl cyclohexene oxide-alt-phthalic anhydride) (91 kg mol−1) shows 5× greater flexural strain at break (εb = 3.7%) and 9× higher maximum flexural stress (σf = 72.3 MPa) than the previously accessed medium molar mass samples (24 kg mol−1). It is also enchains phthalic anhydride, vinyl cyclohexene oxide and ε-decalactone, via switchable catalysis, to make high molar mass triblock polyesters (81 kg mol−1, Đ = 1.04). This selective catalyst should be used in the future to qualify the properties of these ROCOP polyesters and to tune (multi)block polymer structures. A heterodinuclear Al(iii)/K(i) organometallic ring-opening copolymerization catalyst shows exceptional rates, end-group selectivity and good loading tolerance to deliver monodisperse polyesters with molar masses up to 91 kg mol−1.![]()
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Affiliation(s)
- Wilfred T. Diment
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Charlotte K. Williams
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK
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22
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Wood ZA, Assefa MK, Fieser ME. Simple yttrium salts as highly active and controlled catalysts for the atom-efficient synthesis of high molecular weight polyesters. Chem Sci 2022; 13:10437-10447. [PMID: 36277642 PMCID: PMC9473511 DOI: 10.1039/d2sc02745c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 08/16/2022] [Indexed: 11/21/2022] Open
Abstract
The ring-opening copolymerization (ROCOP) of epoxides and cyclic anhydrides is a promising route to sustainable aliphatic polyesters with diverse mechanical and thermal properties. Here, simple yttrium chloride salts (YCl3THF3.5 and YCl3·6H2O), in combination with a bis(triphenylphosphoranylidene)ammonium chloride [PPN]Cl cocatalyst, are used as efficient and controlled catalysts for ten epoxide and anhydride combinations. In comparison to past literature, this simple salt system exhibits competitive turn-over frequencies (TOFs) for most monomer pairs. Despite no supporting ligand framework, these salts provide excellent control of dispersity, with suppression of side reactions. Using these catalysts, the highest molecular weight reported to date (302.2 kDa) has been obtained with a monosubstituted epoxide and tricyclic anhydride. These data indicate that excellent molecular weight control and suppression of side reactions for ROCOP of epoxides and cyclic anhydrides can coincide with high activity using a simple catalytic system, warranting further research in working towards industrial viability. Two simple yttrium salts, YCl3THF3.5 and YCl3·6H2O, are highly active and controlled catalysts for the perfectly alternating ring-opening copolymerization of epoxides and cyclic anhydrides.![]()
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Affiliation(s)
- Zachary A. Wood
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA
| | - Mikiyas K. Assefa
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA
| | - Megan E. Fieser
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA
- Wrigley Institute for Environmental Studies, University of Southern California, Los Angeles, California, 90089, USA
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23
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Kummari A, Pappuru S, Singha Roy S, Chakraborty D. Iodine and alkali metal alkoxides: a simple and versatile catalytic system for fully alternating polyester synthesis from phthalic anhydride and epoxides. Polym Chem 2022. [DOI: 10.1039/d2py00411a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Regioselective ROCOP of various epoxides with phthalic anhydride using readily available and economical catalysts i.e. I2 in combination with alkali metal alkoxides was used.
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Affiliation(s)
- Anjaneyulu Kummari
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Sreenath Pappuru
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Sourav Singha Roy
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Debashis Chakraborty
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
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24
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Lin L, Chen X, Xiang H, Chang M, Xu Y, Zhao H, Meng Y. Construction of triblock copolyesters via one-step switchable terpolymerization of epoxides, phthalic anhydride and ε-caprolactone using dual urea/organic base catalysts. Polym Chem 2022. [DOI: 10.1039/d1py01390d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A cost-effective and efficient system of ureas/organic bases toward the controlled self-switchable copolymerization of epoxide/PA/CL to obtain well-defined triblock polyesters.
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Affiliation(s)
- Limiao Lin
- School of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China
| | - Xin Chen
- School of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China
| | - Huanxin Xiang
- School of Materials Science & Hydrogen Energy, Foshan University, Foshan 528000, China
| | - Min Chang
- School of Materials Science & Hydrogen Energy, Foshan University, Foshan 528000, China
| | - Yonghang Xu
- School of Materials Science & Hydrogen Energy, Foshan University, Foshan 528000, China
| | - Hongting Zhao
- School of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China
| | - Yuezhong Meng
- The Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province/School of Materials Science and Engineering, Sun Yat-Sen University, 135 Xingang West, Guangzhou, 510275, China
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25
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Suzuki R, Xia X, Gao T, Yamamoto T, Tajima K, Isono T, Satoh T. Synthesis of Hyperbranched Polyester via Ring-opening Alternating Copolymerisation of Epoxide with Cyclic Anhydride having a Carboxyl Group. Polym Chem 2022. [DOI: 10.1039/d2py00571a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hyperbranched polyesters (HBPEs) are well-known interesting materials in many fields. However, the known synthetic approaches to HBPE lack versatility. Herein, we report a novel synthetic approach to HBPE via ring-opening...
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26
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Ghosh S, Glöckler E, Wölper C, Linders J, Janoszka N, Gröschel AH, Schulz S. Comparison of the Catalytic Activity of Mono‐ and Multinuclear Ga Complexes in the ROCOP of Epoxides and Cyclic Anhydrides. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202101017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Swarup Ghosh
- Faculty of Chemistry University of Duisburg-Essen and Center for Nanointegration Duisburg-Essen (CENIDE) Universitätsstr. 7, S07 S03 C30 45141 Essen Germany
| | - Eduard Glöckler
- Faculty of Chemistry University of Duisburg-Essen and Center for Nanointegration Duisburg-Essen (CENIDE) Universitätsstr. 7, S07 S03 C30 45141 Essen Germany
| | - Christoph Wölper
- Faculty of Chemistry University of Duisburg-Essen and Center for Nanointegration Duisburg-Essen (CENIDE) Universitätsstr. 7, S07 S03 C30 45141 Essen Germany
| | - Jürgen Linders
- Faculty of Physical Chemistry University of Duisburg-Essen Universitätsstraße 5 45141 Essen Germany
| | - Nicole Janoszka
- Faculty of Chemistry University of Münster and Center for Soft Nanoscience (SoN) Busso-Peus-Strasse 10 48149 Münster Germany
| | - André H. Gröschel
- Faculty of Chemistry University of Münster and Center for Soft Nanoscience (SoN) Busso-Peus-Strasse 10 48149 Münster Germany
| | - Stephan Schulz
- Faculty of Chemistry University of Duisburg-Essen and Center for Nanointegration Duisburg-Essen (CENIDE) Universitätsstr. 7, S07 S03 C30 45141 Essen Germany
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27
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You H, Wang E, Cao H, Zhuo C, Liu S, Wang X, Wang F. From Impossible to Possible: Atom-Economic Polymerization of Low Strain Five-Membered Carbonates. Angew Chem Int Ed Engl 2021; 61:e202113152. [PMID: 34905260 DOI: 10.1002/anie.202113152] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Indexed: 01/18/2023]
Abstract
The direct ring-opening polymerization (ROP) of propylene carbonate (PC) only affords oligomers with substantial unidentified by-products, which hinders the efficient utilization of PC. Through detailed studies, for the first time, a careful mechanism involving the in situ release of propylene oxide (PO) from PC decarboxylation is proposed. Further, we report a novel strategy of copolymerization of PC/cyclic anhydrides via in situ capture of the formed intermediates. Results show that PC is successfully transformed into polyesters. Especially for the ring-opening alternating copolymerization (ROAC) of PC/phthalic anhydride (PA), a variety of advantages are manifold: i) slow-release of PO ensuring a perfectly alternating structure; ii) quantitative and fast transformation of PC; iii) visualization of polymerization process by a CO2 pressure gauge. Of importance, through tandem polymerizations, PC is fully transformed into polyesters and polycarbonates concurrently, thus achieving PC utilization with a high atom-economy.
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Affiliation(s)
- Huai You
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, CAS, Changchun, 130022, P. R. China
- University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Enhao Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, CAS, Changchun, 130022, P. R. China
- University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Han Cao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, CAS, Changchun, 130022, P. R. China
- University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Chunwei Zhuo
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, CAS, Changchun, 130022, P. R. China
- University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Shunjie Liu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, CAS, Changchun, 130022, P. R. China
- University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Xianhong Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, CAS, Changchun, 130022, P. R. China
- University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Fosong Wang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, CAS, Changchun, 130022, P. R. China
- University of Science and Technology of China, Hefei, 230026, P. R. China
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28
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Diment WT, Gregory GL, Kerr RWF, Phanopoulos A, Buchard A, Williams CK. Catalytic Synergy Using Al(III) and Group 1 Metals to Accelerate Epoxide and Anhydride Ring-Opening Copolymerizations. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04020] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wilfred T. Diment
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Georgina L. Gregory
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Ryan W. F. Kerr
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Andreas Phanopoulos
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Antoine Buchard
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| | - Charlotte K. Williams
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
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29
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Mu G, Pandiyarajan CK, Lu X, Weaver M, Genzer J, Gorman CB. Dynamic Surfaces-Degradable Polyester Networks that Resist Protein Adsorption. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:8978-8988. [PMID: 34297579 DOI: 10.1021/acs.langmuir.1c00890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
We synthesized a series of novel degradable alternating copolyesters composed of diglycolic anhydride (DGA) and two epoxides, epoxymethoxytriethylene glycol (ETEG) and a photoactive crosslinking agent epoxy benzophenone (EBP). After UV crosslinking, soaking the films in a good solvent (tetrahydrofuran) removed uncrosslinked material, and the resulting film gel fractions were calculated. These network films were then degraded in buffer solutions of varying pH values. The degradation of networks with lower gel fraction (fewer crosslinks) was faster and followed first-order kinetics. In contrast, the denser network degraded slower and followed zeroth-order kinetics. The lower gel fraction networks possess a higher swelling ratio and resist bovine serum albumin (BSA) adsorption better by entropic shielding and faster degradation. In comparison, higher gel fraction networks with higher EBP mole fractions adsorb more BSA due to hydrophobic interactions and slower degradation.
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Affiliation(s)
- Gaoyan Mu
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-7905, United States
| | - C K Pandiyarajan
- Department of Chemical & Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695-7905, United States
| | - Xiuyuan Lu
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-7905, United States
| | - Matt Weaver
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-7905, United States
| | - Jan Genzer
- Department of Chemical & Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695-7905, United States
| | - Christopher B Gorman
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-7905, United States
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30
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Plajer AJ, Williams CK. Heterocycle/Heteroallene Ring-Opening Copolymerization: Selective Catalysis Delivering Alternating Copolymers. Angew Chem Int Ed Engl 2021; 61:e202104495. [PMID: 34015162 PMCID: PMC9298364 DOI: 10.1002/anie.202104495] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Indexed: 11/29/2022]
Abstract
Heteroatom‐containing polymers have strong potential as sustainable replacements for petrochemicals, show controllable monomer–polymer equilibria and properties spanning plastics, elastomers, fibres, resins, foams, coatings, adhesives, and self‐assembled nanostructures. Their current and future applications span packaging, house‐hold goods, clothing, automotive components, electronics, optical materials, sensors, and medical products. An interesting route to these polymers is the catalysed ring‐opening copolymerisation (ROCOP) of heterocycles and heteroallenes. It is a living polymerization, occurs with high atom economy, and creates precise, new polymer structures inaccessible by traditional methods. In the last decade there has been a renaissance in research and increasing examples of commercial products made using ROCOP. It is better known in the production of polycarbonates and polyesters, but is also a powerful route to make N‐, S‐, and other heteroatom‐containing polymers, including polyamides, polycarbamates, and polythioesters. This Review presents an overview of the different catalysts, monomer combinations, and polymer classes that can be accessed by heterocycle/heteroallene ROCOP.
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Affiliation(s)
- Alex J Plajer
- Oxford Chemistry, Chemical Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Charlotte K Williams
- Oxford Chemistry, Chemical Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK
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31
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Xia X, Suzuki R, Takojima K, Jiang DH, Isono T, Satoh T. Smart Access to Sequentially and Architecturally Controlled Block Polymers via a Simple Catalytic Polymerization System. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00382] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xiaochao Xia
- School of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400054, China
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Ryota Suzuki
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Kaoru Takojima
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Dai-Hua Jiang
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo 060-8628, Japan
- Institute of Polymer Science and Engineering, National Taiwan University, 106 Taipei, Taiwan
| | - Takuya Isono
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Toshifumi Satoh
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
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