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Publicly Available Published by De Gruyter August 31, 2013

Optical methods to study the behaviour of supported metallocene catalysts during olefin polymerisation

Yong-Jun Jang, Kirsten Bieber, Corinna Naundorf, Nikolay Nenov, Markus Klapper, Klaus Müllen, Daniela Ferrari, Stefan Knoke and Gerhard Fink
From the journal e-Polymers

Abstract

It is demonstrated that modern optical methods allow for a very fast study of the behaviour of supported metallocene catalysts. By videomicroscopy several polymeric supports functionalised with cyclopentadiene units or poly(ethylene oxide) and poly(propylene oxide) chains and loaded with a metallocene were simultaneously studied. In this example it is shown that this method allows for a direct comparison of different catalysts under identical conditions in a single experiment. In addition by this experiment more detailed information on the behaviour of the supports can be obtained by studying the growth kinetics of single grains. As a second tool, laser scanning confocal fluorescence microscopy (LSCFM) was applied. Using dye-labelled supports LSCFM can be used as a very rapid tool to study the fragmentation of supports. This is demonstrated by 3D images showing the distribution of different support fragments in the polyethylene product particles.

Published Online: 2013-8-31
Published in Print: 2005-12-1

© 2013 by Walter de Gruyter GmbH & Co.

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