Introducing a flat model of the silica-supported bis(imino)pyridyl iron(II) polyolefin catalyst

被引：23

作者：

Han, W ^{[1
]}

Müller, C ^{[1
]}

Vogt, D ^{[1
]}

Niemantsverdriet, H ^{[1
]}

Thüne, PC ^{[1
]}

机构：

[1] Eindhoven Univ Technol, Schuit Inst Catalysis, NL-5600 MB Eindhoven, Netherlands

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2006年 / 27卷 / 04期

关键词：

catalyst immobilization; late transition metal catalyst; morphology; polyethylene (PE); XPS;

D O I：

10.1002/marc.200500701

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 well-defined flat model of a supported homogeneous polyolefin catalyst is prepared on the basis of an immobilized bis(imino)pyridyl iron complex on a super flat silica surface. The amount of supported catalyst precursor is quantified using XPS. This model catalyst remains active over extended periods, i.e., an average activity of 0.25 x 10(3) kg PE . (mol(Cat) . h . bar)(-1) is obtained for 24 h of ethylene polymerization. The morphology of the nascent polyethylene film is investigated by SEM.

引用

页码：279 / 283

页数：5

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