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
收藏
页码：279 / 283
页数：5
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