乙烯原位共聚法制备线性低密度聚乙烯的研究进展  

Advances in Preparation of Linear Low-Density Polyethylene by in Situ Copolymerization of Ethylene

作　　者：胡友良[1] 张志成[1] 

机构地区：[1]中国科学院化学研究所高分子科学与材料联合实验室工程塑料重点实验室,北京100080

出　　处：《石油化工》2005年第10期911-916,共6页Petrochemical Technology

基　　金：国家"973"项目(G1999064800);国家"863"项目(2002AA333050)

摘　　要：系统综述了近二十年来乙烯原位共聚法制备线性低密度聚乙烯的研究开发工作。按照共聚催化剂的不同,分为Z ieg ler-Natta催化体系、茂金属催化体系及非茂金属催化体系3类催化体系,着重阐述了乙烯原位共聚催化体系的特点、得到的聚合物的特征及乙烯原位共聚法的优缺点等。Advances in preparation of linear low - density polyethylene （LLDPE） by in situ copolymerization of ethylene during recent 20 years were reviewed. In respect of difference in copolymerization catalysts, three kinds of difunctional catalyst systems used for preparation of LLDPE, namely Ziegler - Natta catalyst system, metallocene catalyst system and non - metallocene catalysts system, were mainly introduced. Properties of these catalyst systems and polymer obtained were also included.

关 键 词：原位共聚 线性低密度聚乙烯 ZIEGLER-NATTA 茂金属 双功能催化体系 催化剂 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]