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Ethylene polymerization using crosslinked polystyrene as support for zirconocene dichloride/methylaluminoxane

✍ Scribed by Martin Stork; Matthias Koch; Markus Klapper; Klaus Müllen; Heike Gregorius; Ursula Rief

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 82 KB
Volume: 20
Category: Article
ISSN: 1022-1336
DOI: 10.1002/(sici)1521-3927(19990401)20:4<210::aid-marc210>3.0.co;2-q

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✦ Synopsis

In this paper we report on a zirconocene dichloride/methylaluminoxane catalyst system supported on a crosslinked polystyrene in order to provide ethylene polymerization catalysts for gas phase or slurry processes. Our novel approach uses the Diels-Alder reaction of cyclopentadiene functions as the final, crosslinking synthetic step. This provides polymer supported zirconocene catalysts with a homogeneous distribution of active sites. The catalysts were shown to be highly active and to form spherical beads as proven by scanning electron microscopy.

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