选择性催化混合单体制备多组分聚酯的研究进展  

Recent progress in the preparation of multicomponent polyesters by selective catalysis from mixed monomers

作　　者：周延川 庞烜[1] 陈学思[1] Yanchuan Zhou;Xuan Pang;Xuesi Chen(Key Laboratory of Polymer Ecomaterials,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China)

机构地区：[1]中国科学院长春应用化学研究所,中国科学院生态环境高分子材料重点实验室,长春130022

出　　处：《中国科学：化学》2021年第2期144-153,共10页SCIENTIA SINICA Chimica

基　　金：国家自然科学基金(编号:21574124)资助项目。

摘　　要：以聚乳酸和聚碳酸酯等为代表的生物可降解高分子材料已被应用于包装材料和生物医用等领域.然而受链段结构的影响,这类均聚物材料在实际应用中受到了一定限制.将不同性质聚合物链段通过共价键连接形成的嵌段共聚物具有组分均匀、性能可控等优点,是优化材料性能的一种方法.本文概述了环酯、环氧化物和CO_(2)(或环状酸酐)的多元共聚反应合成嵌段聚酯的研究进展.首先介绍了多元共聚反应中链增长机理和判断嵌段共聚物结构的表征方法,进一步讨论了催化体系-聚合物结构的关系和聚合物材料的性能表征.Biodegradable polymer materials, such as polylactide and polycarbonate, have been used in packaging materials and biomedicine, etc. However, these homopolymeric materials are limited in the practical applications due to the influence of chain structures. Synthesizing block polymers with designed polymer segments is a method to optimize material properties, which has many advantages including uniform components and controllable properties. This review outlined the research progress in the perparation of block polyesers from cyclic esters, epoxides and CO_(2)(or cyclic anhydrides). We introduced the chain growth mechanism and the methods of judging block copolymer structures. The relationship between catalytic systems-polymer structures, and materials’ properties were further discussed.

关 键 词：选择性催化 开环聚合反应 聚酯 多元共聚物 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]