应用化学 ›› 1995, Vol. 0 ›› Issue (5): 1-4.

• 研究论文 •    下一篇

双(环戊二烯基)二氯化锆载体催化剂催化乙烯/α-烯烃共聚合

刘胜生, 于广谦, 黄葆同   

  1. 中国科学院长春应用化学研究所, 长春 130022
  • 收稿日期:1994-12-12 修回日期:1995-04-17 出版日期:1995-10-10 发布日期:1995-10-10
  • 基金资助:
    国家自然科学基金资助项目

Ethylene/α-Olefin Copolymerization with Supported Cp2ZrCl2 Catalysts

Liu Shengsheng, Yu Guangqian, Huang Baotong   

  1. Changchun Institute of Applied Chemistry, Chinese Academy fo Sciences, Changchun 130022
  • Received:1994-12-12 Revised:1995-04-17 Published:1995-10-10 Online:1995-10-10

摘要: 合成了3种Zr/甲基铝氧烷(MAO)/SiO2型载体催化剂.考察了不同MAO投料量对载锆反应及催化活性的影响.研究了乙烯聚合及乙烯/α-烯烃共聚合.结果表明,该催化剂对己烯和辛烯有很强的共聚作用,而对癸烯的共聚能力较弱.解释了α-烯烃碳链增长对乙烯/α-烯烃共聚催化活性的影响.SEM分析表明,α-烯烃的加入有利于聚合物形态的改善.

关键词: 载体催化剂, 茂锆化合物, 烯烃聚合, 催化活性

Abstract: Supported Zr/MAO/SiO2 catalysts with different Zr content have been synthe-sized.The influence of the amount of methylaluminoxane in reactants on the Zr content inthe catalysts and the catalytic activity has been examined.Copolymerization of ethylene withlinear 1-alkenes by the catalysts was investigated.It was found that hexene-1 and octene-1were highly incorporated,while for decene-1,the copolymers contained low comonomercomponent.The effect of chain length of α-olfin on the catalytic activity has been explained.It is observed from SEM that α-olefin in the copolymers can improve polymer particle mor-phology.

Key words: supported catalyst, zirconocene, olefin polymerization, catalytic activity