Ethylene polymerization using (n-BuCp)2ZrCl2 catalyst activated with a cross-linked MAO-supported cocatalyst

被引：0
作者：
Keun Byoung Yoon
机构：
[1] Electronics and Telecommunications Research Institute (ETRI),Optical Interconnection Team
来源：
Macromolecular Research | 2004年 / 12卷
关键词：
cross-linked MAO supported cocatalyst; ethylene polymerization; spherical morphology;
D O I：
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学科分类号：
摘要：
A new type of cross-linked methylaluminoxane (MAO)-supported cocatalyst has been prepared by the reaction of a soluble MAO and a cross-liking agent such as an aromatic diamine compound. The cross-linked MAO-supported cocatalyst was used for the polymerization of ethylene in the presence of bis(n-butylcyclopentadienyl) zirconium dichloride, (n-BuCp)2ZrCl2. The catalyst activity of (n-BuCp)2ZrCl2 cocatalyzed with the new supported cocatalyst was higher than that of the commercial silica-supported MAO (SMAO) cocatalyst. The molecular weight and the bulk density of the polyethylene produced by using the new supported cocatalyst were slightly higher than those of polyethylene synthesized using commercial SMAO. The resulting polyethylene particles possess spherical morphologies with very few fine particles.
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页码：336 / 341
页数：5
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