Electrochemically Controlled Switchable Copolymerization of Lactide, Carbon Dioxide, and Epoxides. Issue 20 (19th March 2022)

• Record Type: Journal Article
• Authors: Huang, Yuezhou; Hu, Chenyang; Pang, Xuan; Zhou, Yanchuan; Duan, Ranlong; Sun, Zhiqiang; Chen, Xuesi
• Is Part Of: Angewandte Chemie international edition. Volume 61:Issue 20(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-03-19
• Subjects: Electrochemical Selectivity -- Multi-Block Copolymers -- Ring-Opening Copolymerization -- Switchable Copolymerization; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.202202660
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: Electrochemical redox‐control is an emerging strategy for the regulation of polymerization process without the addition of external oxidants and reductants, which enables the control over composition, microstructure and properties of the polymer products. In this paper, based on the chemical selectivity of heterometallic Salen‐Co‐Mn complexes of different valences, an electrochemically switchable strategy was developed for the copolymerization of lactide (LA), CO2 and epoxides. The switchable redox reactions endowed this system with the capability to easily synthesize a multi‐block copolymer of polylactide (PLA) and polycarbonate (PC). Moreover, the multi‐block copolymer could be further modified by introducing various monomers with different microstructures and functional groups. Abstract : An electrochemically switchable strategy was developed for the copolymerization of lactide (LA), CO2 and epoxides to easily synthesize multi‐block copolymers of polylactide (PLA) and polycarbonate (PC).