载体化Me_2Si(Ind) _2ZrCl_2催化乙烯-己烯共聚  

The Copolymerization of Ethylene and Hexene via Silica Supported Me 2(Ind) 2ZrCl 2

作　　者：唐继信[1] 

机构地区：[1]大庆石油学院石油化工系

出　　处：《石油化工》1998年第2期103-105,共3页Petrochemical Technology

摘　　要：研究了以ＳｉＯ２为载体的Ｍｅ２Ｓｉ（Ｉｎｄ）２ＺｒＣｌ２／ＭＡＯ催化乙烯－己烯共聚合反应。在试验条件下，随着共聚单体己烯含量的增加，共聚物相对分子质量、熔点和密度均下降；反应活性则呈现共单体效应。研究了该共聚物序列结构、组成、数均链长，测定了该共聚物的竞聚率ｒ１＝１３．６、ｒ２＝０．０７４、ｒ１ｒ２＝１．０。The copolymerization of ethylene and hexene with silica supported Me 2Si(Ind) 2ZrCl 2 was investigated The molecular weight,melting point and density of the copolymer decreased with increasing molar ratio of H / E ,and the “comonomer effect”was observed for reactivity The composition,sequence distribution,number average chain length and reactivity ratio were determined

关 键 词：载体化 硅桥金属茂 共聚合 乙烯 己烯 聚乙烯 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]