THE INFLUENCE OF SUBSTITUENTS IN METALLOCENE ON PROPYLENE POLYMERIZATION

• 作 者: 封林先
• 机 构: DepartmentofPolymerScienceandEngineeringZhejiangUniversity,Hangzhou310027,China
• 出 处: 高分子科学：英文版
• 发表日期: 1999年5期
• 关键词: Polymerization Unbridged zirconocenes ELASTOMERIC POLYPROPYLENE HOMOGENEOUS META
• 基金项目: This project has been supported by the National Natural Science Foundation of China and the Petrochemical Incorporation of China (grant number 29734144).

Two new unbridged zirconocenes, bis（2,4,7-trimethyl indenyl）zirconium dichloride （Met-Ⅰ） andbis（2-methyl-4,7-diethyl indenyl）zirconium dichloride （Met-Ⅱ） were prepared in order to investigate thesteric effects of substituents on the nature of the catalyst