Supported metallocene catalysts prepared by impregnation of silica with metallocene/aluminoxane/1-hexene solutions

被引：0

作者：

Rytter, E ^{[1
]}

Ott, M

机构：

[1] Norwegian Univ Sci & Technol, Dept Chem Engn, NTNU, N-7491 Trondheim, Norway

[2] STATOIL, Res Ctr, N-7005 Trondheim, Norway

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2001年 / 22卷 / 17期

关键词：

copolymerization; impregnation; metallocene catalysts; polyethylene (PE); supports;

D O I：

10.1002/1521-3927(20011101)22:17<1427::AID-MARC1427>3.0.CO;2-1

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 method for the preparation of supported metallocene/alkylaluminoxane catalysts has been developed. An incipient wetness impregnation of silica at ca. -40 degreesC is performed in one step employing a solution of catalyst and cocatalyst in 1-hexene. A prepolymerization of this system at ambient temperature yields a catalyst robust towards exposure to air, as demonstrated by a reasonable activity during ethene polymerization. A special feature of the catalyst is a uniform impregnation across the silica particles.

引用

页码：1427 / 1431

页数：5