Polymerization of ethylene and ethylene/1-hexene over Ziegler-Natta/metallocene hybrid catalysts supported on SiO2 prepared by a sol-gel method

被引：0
|
作者：
Cho, HS [1 ]
Choi, DJ [1 ]
Lee, WY [1 ]
机构：
[1] Seoul Natl Univ, Coll Engn, Div Chem Engn, Seoul 151742, South Korea
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2000年 / 78卷 / 13期
关键词：
silica support; metallocene catalyst; Ziegler-Natta catalyst; hybrid catalysts; polymerization; ethylene; 1-hexene;
D O I：
10.1002/1097-4628(20001220)78:13<2318::AID-APP90>3.3.CO;2-S
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A silica support for use in olefin polymerization was prepared by the gelation of a stable, colloidal phase of silica sol using a MgCl2 solution as the initiator. The Ziegler-Natta/Metallocene hybrid catalysts prepared using this support exhibited characteristics of both Ziegler-Natta and metallocene catalysts. The polymers produced by the hybrid catalysts showed a bimodal molecular weight distribution pattern and two different melting points, corresponding to products arising from each catalyst. This suggests that the hybrid catalysts acted as individual active species and produced a blend of polymers. (C) 2000 John Wiley & Sons, Inc.
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收藏
页码：2318 / 2326
页数：9
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