镍二亚胺配合物-TiCl_4复合催化剂制备新型乙烯/1-丁烯共聚产物结构性能研究  

STUDIES ON STRUCTURE AND CHARACTERISTICS OF ETHYLENE/1-BUTENE COPOLYMERS PREPARED BY Ni DIIMINE COMPLEXES-TiCl_4 CATALYSTS

作　　者：林少全[1] 萧翼之[1] 胡锦民[1] 王海华[1] 

机构地区：[1]中山大学高分子研究所,广东广州510275

出　　处：《高分子材料科学与工程》2002年第4期42-44,48,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金;燕山石油化工研究院联合资助 (2 9874 0 39);广东省基金 (0 0 12 80 )资助项目

摘　　要：研究了三种负载型镍的二亚胺配合物与 Ti Cl4组成的新型复合催化体系 ,在不用 MAO,以烷基铝为助催化剂的条件下 ,催化乙烯 / 1-丁烯淤浆共聚制备的一系列塑性体和弹性体共聚物的结构性能。发现由于催化体系具有齐聚及原位共聚性能 ,制得的共聚产物是一种高支化度 (2 1.1～ 70 .3branch num-ber/ 10 0 0 C)、低密度和极低密度 (0 .880 g/ cm3 ～ 0 .911g/ cm3 )The copolymers of ethylene with 1 butene were prepared by three types of Nickel diimine complexes/TiCl 4 hybrid catalysts with AlR 3 as cocatalyst in the absence of MAO. Their structure and properties were investigated. It is found that because the catalysts exhibited the properties of oligomerization and copolymerization in situ, the copolymers obtained are plastics or elastomers, with high branching degree of 21.1 to 70.3 branch number/1000C and low density of 0.880 to 0.911 g/cm 3 respectively.

关 键 词：镍二亚胺 配合物 复合催化剂 制备 新型 乙烯/1-丁烯共聚物 结构 性能 研究 齐聚 原位共聚 

分 类 号：TQ325.1[化学工程—合成树脂塑料工业] TQ320.4