文献类型：期刊文献

英文题名：Lipase-catalyzed ring-opening copolymerization of macrocycles for diselenide-functionalized long-chain polycarbonate: Synthesis, kinetic process and ROS responsiveness

作者：Li, Siqi[1];Ma, Xiaotong[1];Li, Ruizhi[1];Sun, Chuanhao[1];Hu, Jieni[1];Zhang, Yan[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Key Lab Ultrafine Mat Minist Educ, Shanghai 200237, Peoples R China

年份：2022

卷号：179

外文期刊名：REACTIVE & FUNCTIONAL POLYMERS

收录：;EI(收录号：20223612689477);WOS:【SCI-EXPANDED(收录号:WOS:000863214100002)】；

基金：This work was supported by National Natural Science Foundation of China (51873062, 52073093) .

语种：英文

外文关键词：Macrocyclic carbonate; Ring -opening copolymerization; Diselenide-containing; Self -assembly; ROS responsiveness

摘要：Herein, the lipase-catalyzed ring-opening copolymerization of the diethylene diselenide carbonate dimer (SeC) with its analogue macrocycle (1,3,12,14-Tetraoxacyclodocosane-2,13-dione, TDC) was explored, and the smallring carbonate (TMC) was used as control. The structure and composition of the diselenide-functionalized longchain polycarbonates were confirmed by NMR and FTIR. The 13C NMR and 77Se NMR showed that the copolymers observed random sequence. Moreover, the kinetic process of TDC + SeC copolymerization demonstrated a faster polymerization rate and higher conversion of SeC in comparison with TMC + SeC. Besides, the copolymers exhibited ROS-responsive behaviors when exposed to the oxidizing environment owing to the diselenide groups, which was confirmed by UV-vis, DLS and TEM. Therefore, the ROS responsiveness facilitated potential application for the diselenide-functionalized copolymers.