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Chlorinated organic polymers as supports for Ziegler-Natta catalysts

✍ Scribed by Soraya Jericó; Ulf Schuchardt; Inés Joekes; Walter Kaminsky; Annegret Noll

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
656 KB
Volume
99
Category
Article
ISSN
1381-1169

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✦ Synopsis

Chlorinated organic polymers were prepared, characterized and used as supports for TiC14. The activity of the new catalysts in the polymerization of ethylene was compared with that observed for TiCl, supported on non-chlorinated polymers. It was found that the new catalysts have initial activities of up to 4 kg PE/mol Ti . min. bar, but deactivate quickly, probably due to insertion of Ti(III) into the carbon+hlorine bonds. The viscosimetric average molecular weights of the PE produced with the new catalysts are between 300 and 550 kg/mol, in agreement with a short polymerization time.

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