Electrochemically Controlled Switchable Copolymerization of Lactide, Carbon Dioxide, and Epoxides

作者：Yuezhou Huang, Chenyang Hu, Xuan Pang, Yanchuan Zhou, Ranlong Duan, Zhiqiang Sun, Xuesi Chen · 发表于：Angewandte Chemie International Edition · 年份：2022 · DOI：10.1002/anie.202202660 · 被引用次数：39 · 研究领域：Carbon dioxide utilization in catalysis、Supercapacitor Materials and Fabrication、biodegradable polymer synthesis and properties

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), CO 2 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.