丙烯与极性单体嵌段共聚合的研究进展  

Progress in synthesis methods of polypropylene-based block copolymers

作　　者：倪夕霞 范志强[1] 傅智盛[1] 

机构地区：[1]高分子合成与功能构造教育部重点实验室,浙江大学高分子科学与工程学系,浙江省杭州市310027

出　　处：《合成树脂及塑料》2016年第2期83-87,共5页China Synthetic Resin and Plastics

基　　金：国家重点基础研究发展规划项目(2011CB 606001)

摘　　要：综述了近年来聚丙烯基嵌段共聚物合成方法的研究进展。通过选用合适的Ti催化剂能够直接催化丙烯与降冰片烯和/或甲基丙烯酸甲酯进行聚合,从而通过活性聚合的方式直接得到聚丙烯基嵌段共聚物。合适的聚合条件下,链转移剂的加入能够在聚合过程中产生金属―C键,再经氧化酸化后得到末端羟基,实现聚丙烯的端基功能化。将端基功能化与可控自由基反应、点击反应、偶联反应相结合能够得到聚丙烯基嵌段共聚物。通过催化剂的结构优化设计,配合合适的链转移剂,能够调控聚丙烯基嵌段共聚物的结构。This article reviews the development of the synthesis of polypropylene-based block copolymers in recent years. Propylene can be directly polymerized with norbornene and/or methyl methacrylate via living polymerization by use of suitable Ti catalyst. The addition of chain transfer agent can form metal-C bond in the polymerization process under proper reaction conditions. Then the metal-terminated PP is oxidized and subsequently hydrolyzed to provide PP-t-OH to realize the terminal functionalization of PP, which is used as macroinitiator in controlled radical reaction, click reaction, and coupling reaction to get polypropylene-based block polymers. The structure of the polypropylene-based block polymer is controlled by optimization of catalyst structure and by use of appropriate chain transfer agent.

关 键 词：聚丙烯 端基功能化 链转移反应 活性聚合 

分 类 号：O631.5[理学—高分子化学]