Preparation of long-branched polyethylene by in situ poly-merization using late transition metal and metallocene catalysts

作     者：LIU Zhongyang GUO Cunyue MAZhi WANG Jun XU Demin HE Dawei HU Youliang 

作者机构：State Key Lab of Engineering PlasticsCenter for Molecular ScienceInstitute of ChemistryChinese Academy of SciencesBeijing 100080China Beijing Lab of CatalysisChina National Petroleum Corporation Key Lab of CatalysisBeijing 100080China 

出 版 物：《Chinese Science Bulletin》 (CHINESE SCIENCE BULLETIN)

年 卷 期：2001年第46卷第24期

页      面：2054-2057页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：This work was supported hy the National Natural Science Foundation of China and China Petroleum Corporation (Grant No. 29734141) 

主　　题：long-branched polyethylene in situ polymerization late transition metal catalyst metallocene catalyst. 

摘      要：An in situ polymerization method was investigated to prepare long-branched polyethylene (LBPE) with ethylene alone and a single cocatalyst, methylalumoxane (MAO), by using a dual functional catalytic system containing late transition metal oligomerization catalyst and metal-locene copolymerization catalyst. The obtained long-branched polyethylene has the characteristics of low melting point, high activity and well-dispersed sequence distribution.