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Luzel B, Gil N, Désirée P, Monot J, Bourissou D, Siri D, Gigmes D, Martin-Vaca B, Lefay C, Guillaneuf Y. Development of an Efficient Thionolactone for Radical Ring-Opening Polymerization by a Combined Theoretical/Experimental Approach. J Am Chem Soc 2023; 145:27437-27449. [PMID: 38059751 DOI: 10.1021/jacs.3c08610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
The environmental impact of plastic waste has been a real problem for the past decades. The incorporation of cleavable bonds in the polymer backbone is a solution to making a commodity polymer degradable. When radical polymerization is used, this approach is made possible by radical ring-opening polymerization (rROP) of a cyclic monomer that allows for the introduction of a weak bond into the polymer backbone. Among the various cyclic monomers that could be used in rROP, thionolactones are promising structures due to the efficiency of the C═S bond to act as a radical acceptor. Nevertheless, only a few structures were reported to be efficient. In this work, we used DFT calculations to gain a better understanding of the radical reactivity of thionolactones, and in particular, we focused on the transfer rate constant ktr value and its ratio with the propagation rate constant kp of the vinyl monomer. The closer to 1, the better is the statistical incorporation of the two comonomers into the backbone. These theoretical results were in good agreement with all of the experimental data reported in the literature. We thus used this approach to understand the key parameters to tune the reactivity of thionolactone to prepare random copolymers. We identified and prepared the 7-phenyloxepane-2-thione (POT) thionolactone that led to statistical copolymers with styrene and acrylate derivatives that were efficiently degraded under accelerated conditions (KOH in THF/MeOH, TBD in THF, or mCPBA in THF), confirming the theoretical approach. The compatibility with RAFT polymerization as well as the homopolymerization behavior of POT was established. This theoretical approach paves the way for the in-silico design of new efficient thionolactones for rROP.
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Affiliation(s)
- Bastien Luzel
- Aix-Marseille University, CNRS, Institut de Chimie Radicalaire, UMR 7273, F-13397 Marseille, France
| | - Noémie Gil
- Aix-Marseille University, CNRS, Institut de Chimie Radicalaire, UMR 7273, F-13397 Marseille, France
| | - Patrick Désirée
- Aix-Marseille University, CNRS, Institut de Chimie Radicalaire, UMR 7273, F-13397 Marseille, France
| | - Julien Monot
- University of Toulouse UPS, Lab Heterochim Fondamentale & Appl UMR 5069, CNRS, 118 Route Narbonne, F-31062 Toulouse, France
| | - Didier Bourissou
- University of Toulouse UPS, Lab Heterochim Fondamentale & Appl UMR 5069, CNRS, 118 Route Narbonne, F-31062 Toulouse, France
| | - Didier Siri
- Aix-Marseille University, CNRS, Institut de Chimie Radicalaire, UMR 7273, F-13397 Marseille, France
| | - Didier Gigmes
- Aix-Marseille University, CNRS, Institut de Chimie Radicalaire, UMR 7273, F-13397 Marseille, France
| | - Blanca Martin-Vaca
- University of Toulouse UPS, Lab Heterochim Fondamentale & Appl UMR 5069, CNRS, 118 Route Narbonne, F-31062 Toulouse, France
| | - Catherine Lefay
- Aix-Marseille University, CNRS, Institut de Chimie Radicalaire, UMR 7273, F-13397 Marseille, France
| | - Yohann Guillaneuf
- Aix-Marseille University, CNRS, Institut de Chimie Radicalaire, UMR 7273, F-13397 Marseille, France
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Xie X, Huo Z, Jang E, Tong R. Recent advances in enantioselective ring-opening polymerization and copolymerization. Commun Chem 2023; 6:202. [PMID: 37775528 PMCID: PMC10541874 DOI: 10.1038/s42004-023-01007-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 09/15/2023] [Indexed: 10/01/2023] Open
Abstract
Precisely controlling macromolecular stereochemistry and sequences is a powerful strategy for manipulating polymer properties. Controlled synthetic routes to prepare degradable polyester, polycarbonate, and polyether are of recent interest due to the need for sustainable materials as alternatives to petrochemical-based polyolefins. Enantioselective ring-opening polymerization and ring-opening copolymerization of racemic monomers offer access to stereoregular polymers, specifically enantiopure polymers that form stereocomplexes with improved physicochemical and mechanical properties. Here, we highlight the state-of-the-art of this polymerization chemistry that can produce microstructure-defined polymers. In particular, the structures and performances of various homogeneous enantioselective catalysts are presented. Trends and future challenges of such chemistry are discussed.
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Affiliation(s)
- Xiaoyu Xie
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, 635 Prices Fork Road, Blacksburg, Virginia, 24061, USA
| | - Ziyu Huo
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, 635 Prices Fork Road, Blacksburg, Virginia, 24061, USA
| | - Eungyo Jang
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, 635 Prices Fork Road, Blacksburg, Virginia, 24061, USA
| | - Rong Tong
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, 635 Prices Fork Road, Blacksburg, Virginia, 24061, USA.
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Zhang X, Sun P, Jiang Y, Liao S. Organocatalytic Ring-Opening Polymerization of ϵ-Caprolactone with Phosphoramidimidates (PADIs) as a Bifunctional Brønsted Acid Catalyst. Chem Asian J 2023; 18:e202201127. [PMID: 36453087 DOI: 10.1002/asia.202201127] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 11/28/2022] [Accepted: 11/29/2022] [Indexed: 12/04/2022]
Abstract
In this study, an organocatalytic ring-opening polymerization (ROP) of ϵ-caprolactone (ϵ-CL) has been developed by employing PADIs as a novel and efficient acid/base bifunctional organocatalyst, which could afford metal-free poly(ϵ-caprolactone) with predictable molecular weight and narrow dispersity at a low catalyst loading under mild conditions. NMR and kinetic studies indicate that the ring-opening polymerizations of lactones catalyzed by PADIs proceed in a living and well controlled manner. Moreover, this organic Brønsted acid catalytic system could allow the synthesis of PCL with molecular weight above 60 kg/mol, as well as well-defined star polymers.
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Affiliation(s)
- Xun Zhang
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University) College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China.,Department State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry Chinese Academy of Sciences, Lingling Lu, Shanghai, 200032, P. R. China
| | - Pan Sun
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University) College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Yu Jiang
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University) College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Saihu Liao
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University) College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China.,College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China
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Isoselective mechanism for asymmetric kinetic resolution polymerization of rac-lactide catalyzed by chiral tridentate bis(oxazolinylphenyl)amido ligand supported zinc complexes. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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5
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Liu W, Yang X. Recent Advances in (Dynamic) Kinetic Resolution and Desymmetrization Catalyzed by Chiral Phosphoric Acids. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100091] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Wei Liu
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 (P. R. China
- University of Chinese Academy of Sciences Beijing 100049 (P. R. China
- Shanghai Institute of Organic Chemistry Shanghai 200032 (P. R. China
| | - Xiaoyu Yang
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 (P. R. China
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Wang ZY, Xu GQ, Zhou L, Lv CD, Yang RL, Dong BZ, Wang QG. Isoselective Ring-opening Polymerization of Racemic Lactide Catalyzed by N-heterocyclic Olefin/(Thio)urea Organocatalysts. CHINESE JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1007/s10118-021-2535-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Lv C, Xu G, Yang R, Zhou L, Wang Q. Stereogradient polycaprolactones formed by asymmetric kinetic resolution polymerization of 6-methyl-ε-caprolactone. Polym Chem 2021. [DOI: 10.1039/d1py00366f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chiral phosphoric acid catalyzed asymmetric kinetic resolution polymerizations of 6-methyl-ε-caprolactone were developed to synthesize stereogradient polycaprolactones.
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Affiliation(s)
- Chengdong Lv
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Guangqiang Xu
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Rulin Yang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Li Zhou
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
| | - Qinggang Wang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
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Wang Z, Mu Y. Chiral salenCo( iii) complexes with bulky substituents as catalysts for stereoselective alternating copolymerization of racemic propylene oxide with carbon dioxide and succinic anhydride. Polym Chem 2021. [DOI: 10.1039/d0py01562h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Stereoregular poly(propylene carbonate)s and poly(propylene succinate-block-carbonate)s were synthesized with new chiral salenCo(iii) catalysts carrying bulky substituents.
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Affiliation(s)
- Zhou Wang
- State Key Laboratory for Supramolecular Structure and Materials
- School of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Ying Mu
- State Key Laboratory for Supramolecular Structure and Materials
- School of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
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