Acta Chimica Sinica ›› 2002, Vol. 60 ›› Issue (3): 509-513. Previous Articles     Next Articles

Original Articles

高分子化Si桥联茂金属催化剂的合成及其催化乙烯聚合反应

诸海滨;金国新   

  1. 中国科学院长春应用化学研究所,长春(130022)
  • 出版日期:2002-03-15 发布日期:2002-03-15

Silane Bridged Polymerized Metallocene Catalyst for Ethylene Polymerization

Zhu Haibin;Jin Guoxin   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences,Changchun(130022)
  • Online:2002-03-15 Published:2002-03-15

The polymerized metallocene catalyst 4 was prepared by the co- polymerization of ansa-zirconocene complex [(CH_2=CH)CH_3Si(C_5H_4)_2] ZrCl_2 (3) containing vinyl substituted silane bridge with styrene in the presence of radical initiator. Catalyst 4 was found to display high ethylene polymerization activity of 2.28 * 10~6 g PE/(mol·h) with a viscosity average molecular weight (M_η) value of 61.6 * 10~3 using methylalumoxane (MAO) as a co-catalyst. The ethylene polymerization has been investigated under different conditions.

Key words: METALLOCENES, CATALYST, ETHYLENE, POLYMERIZATION, IR, 1HNMR, CATALYTIC ACTIVITY

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