有机金属催化剂与丙交酯(LA)开环聚合反应  

Organometallic catalysts for the ring-opening polymerization of lactide

作　　者：胡晨阳[1,2] 庞烜 段然龙[1] 陈学思 Chenyang Hu;Xuan Pang;Ranlong Duan;Xuesi Chen(Key Laboratory of Polymer Ecomaterials,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院长春应用化学研究所生态环境高分子材料重点实验室,长春130022 [2]中国科学院大学,北京100049

出　　处：《中国科学：化学》2018年第8期874-882,共9页SCIENTIA SINICA Chimica

基　　金：国家自然科学基金(编号:21574124;51503203;51233004)资助项目

摘　　要：聚乳酸等聚酯是一类重要的新型生物可降解高分子材料,可替代传统石油基塑料,从而解决"白色污染"问题,减少化石资源的消耗,同时在许多生物医用材料和器件领域也有着广泛的应用.聚乳酸通常是在催化剂的作用下,通过丙交酯单体的开环聚合而得到.本文基于本课题组前期的研究结果对丙交酯单体开环聚合催化剂进行了评述,其中主要介绍了有机金属催化剂,包括基于取代基、手性、中心金属等不同设计的单核有机金属催化剂;另外也对双核和三核金属催化剂的进展进行了总结,讨论了催化剂结构及其聚合反应中心的金属原子间相互作用对开环聚合性能的影响.As a novel type of biomaterials, polylactide （PLA） is an important alternative biodegradable material to traditional fossil-based plastics and shows wide applications in green plastics and biomedical field. PLA is commonly synthesized by the ring-opening polymerization of lactide. In this contribution, the discovery of organometallic catalysts for the ring-opening polymerization of lactide is briefly reviewed based on our group＇s work. Specifically, the organic compounds with different substitution groups, chirality and metal species are discussed for mononuclear and multinuclear catalysts, and the cooperation effects on the steric hindrance and mutual electron are focused for the multinuclear catalysts.

关 键 词：丙交酯 聚乳酸 开环聚合 均相催化 

分 类 号：O631.5[理学—高分子化学]