Effect of Polymerization Temperature on Propylene Polymerization with C_s-symmetric Metallocene Catalyst

作     者：Zhi Qiang FAN Tariq YASIN Lin Xian FENG (Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027) 

作者机构：Zhejiang Univ Dept Polymer Sci & Engn Hangzhou 310027 Peoples R China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2000年第11卷第2期

页      面：167-170页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：the National Natural Science Foundation of China(29734144) Ministry of Science and Technology of Pakistan for granting him fellowship SINOPEC(29734144) 

主　　题：polymerization metallocene catalyst propylene 

摘      要：A novel highly active C-s-symmetric metallocene catalyst namely: meso-dimethylsilylbis (2,4,6-trimethyl-1 -indenyl)zirconium dichloride is presented. The effect of polymerization temperature (0-70 degrees C) on the catalyst performance for propylene polymerization has been investigated. This catalyst shows very high activity at 50 degrees C which is higher than the activity of the racemic analogue, and the resulted polypropylene is amorphous in nature with isotactic pentad content [mmmm] of 12 %.