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Introducing a Flat Model of the Silica‐Supported Bis(imino)pyridyl Iron( II ) Polyolefin Catalyst
Author(s) -
Han Wei,
Müller Christian,
Vogt Dieter,
Niemantsverdriet Hans J. W.,
Thüne Peter C.
Publication year - 2006
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200500701
Subject(s) - polyolefin , catalysis , polyethylene , ethylene , polymer chemistry , materials science , x ray photoelectron spectroscopy , homogeneous , morphology (biology) , polymerization , chemical engineering , chemistry , polymer , organic chemistry , composite material , mathematics , layer (electronics) , combinatorics , biology , engineering , genetics
Summary: 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 × 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.A side‐view SEM image of the PE produced from the supported bis(imino)pyridyl Fe catalyst.