FI催化剂在烯烃活性聚合中的应用  

Application of FI catalyst to olefin living polymerization

作　　者：王景泽[1] 蔡俊飞[1] 傅智盛[1] 范志强[1] 

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

出　　处：《合成树脂及塑料》2011年第6期59-63,共5页China Synthetic Resin and Plastics

基　　金：国家重点基础研究发展规划项目(973计划)(201 1CB606001);国家自然科学基金资助课题(20874084);教育部博士点基金(20100101110136)

摘　　要：综述了含苯氧基亚胺配体的Ⅳ族金属配合物(FI催化剂)在烯烃活性聚合中的应用。N-芳基的邻位氟原子是FI催化剂催化乙烯进行活性聚合的必要条件,芳氧基邻位取代基的空间位阻并不影响催化剂的活性聚合特性。高间规的聚丙烯可由氟代Ti-FI催化剂(尤其是负载的Ti-FI催化剂)制得。在合适的聚合条件下,氟代Ti-FI催化剂/甲基铝氧烷催化体系可制备系列聚烯烃嵌段共聚物。通过催化剂结构的优化设计,配合合适的链转移剂.可实现活性聚合产物的高效率合成。This article reviewed the application of group Ⅳ metal complexes bearing phenoxy-imine ligand （FI catalyst） to olefin living polymerization. The ortho-F atom on N-aromatic ring is the prerequisite for FI catalyst to make the living polymerization of ethylene proceed; the sterie hindrance of aryloxy ortho-substituent does not militate against the catalyst＇s character of living polymerization. Highly syndiotactic monodisperse polypropylene can be prepared by fluorinated Ti-FI catalyst, especially the one supported on MgCl2. A series of polyolefinic block copolymers can be prepared with the catalytic system consisting of fluorinated Ti-FI catalyst and methylaluminoxane under the proper polymerization conditions. High efficient synthesis of the living polymers can be realized through the optimal design of the catalyst structure combined with the function of an appropriate chain transfer agent like H2 or ZnEt2.

关 键 词：FI催化剂 烯烃 活性聚合 

分 类 号：TQ325.1[化学工程—合成树脂塑料工业]