Introducing a Flat Model of the Silica-Supported Bis(imino)pyridyl Iron(II) Polyolefin Catalyst
✍ Scribed by Wei Han; Christian Müller; Dieter Vogt; Hans (J. W.) Niemantsverdriet; Peter C. Thüne
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 214 KB
- Volume
- 27
- Category
- Article
- ISSN
- 1022-1336
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✦ Synopsis
Abstract
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.
magnified imageA side‐view SEM image of the PE produced from the supported bis(imino)pyridyl Fe catalyst.