Construction of Polycarbonates with Pendant Multifunctional Groups via a One-Step CO2/ Diepoxide Copolymerization Approach
文献类型： 外文期刊
作者： Wu, Xianmin 1 ; Zhang, Wei 2 ; Ding, Huining 1 ; Wen, Yeqian 1 ; Guo, Kening 1 ; Duan, Zhongyu 1 ; Liu, Binyuan 1 ;
作者机构： 1.Hebei Univ Technol, Sch Chem Engn & Technol, Hebei Key Lab Funct Polymer, Tianjin 300401, Peoples R China
2.Ningxia Acad Agr & Forestry Sci, Inst Agr Resources & Environm, Yinchuan 750026, Peoples R China
期刊名称：BIOMACROMOLECULES （ 影响因子：6.2； 五年影响因子：6.5 ）
ISSN： 1525-7797
年卷期： 2024 年 25 卷 5 期
页码：
收录情况： SCI
摘要： A "one-step" strategy has been demonstrated for the tunable synthesis of multifunctional aliphatic polycarbonates (APCs) with ethylene oxide (EO), ethylene carbonate (EC), and cyclohexene oxide (CHO) side groups by the copolymerization of 4-vinyl-1-cyclohexene diepoxide with carbon dioxide under an aminotriphenolate iron/PPNBz (PPN = bis(triphenylphosphine)-iminium, Bz = benzoate) binary catalyst. By adjusting the PPNBz-to-iron complex ratio and incorporating auxiliary solvents, the content of functional side groups can be tuned within the ranges of 53-75% for EO, 18-47% for EC, and <1-7% for CHO. The yield and molecular weight distribution of the resulting multifunctional APCs are affected by the viscosity of the polymerization system. The use of tetrahydrofuran as an auxiliary solvent enables the preparation of narrow-distribution polycarbonates at high conversion. This work presents a novel perspective for the preparation of tailorable multifunctional APCs.
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