Novel route to immobilize metallocenes within silica-based supports: Investigation of a nonhydrolytic sol-gel process

被引：6
作者：
Dever, C
Deffieux, A
Cramail, H
Mastroianni, S
机构：
[1] Univ Bordeaux 1, ENSCPB, Lab Chim Polymeres Organ, CNRS,UMR 5629, F-33607 Pessac, France
[2] BP Lavera SNC, Ctr Rech Ecopolis Lavera Sud, F-13117 Lavera, France
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2003年 / 24卷 / 15期
关键词：
metallocene catalysts; polyethylene (PE); silicas; supports;
D O I：
10.1002/marc.200300004
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 novel approach to metallocene catalyst heterogenization is presented. Supported metallocenes are obtained by metallation of indenyl-modified silica produced by a nonhydrolytic sol-gel process. The catalytic activities for ethylene polymerization are rather high for supported systems and may reach 190 grams of polyethylene per gram of catalyst per hour per bar. The influence of the preparation and composition of these supported metallocene systems on ethylene polymerizaiton and polyethylene characteristics are reported.
引用
收藏
页码：883 / 888
页数：6
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