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Polymerization and copolymerization of ethene initiated with disiloxane-bridged biscyclopentadienylzirconium complexes and methylaluminoxane

✍ Scribed by Dong-ho Lee; Keun-byung Yoon; Eok-hyung Lee; Seok-kyun Noh; Chul-soo Lee; Wan-soo Huh

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 304 KB
Volume: 17
Category: Article
ISSN: 1022-1336
DOI: 10.1002/marc.1996.030170507

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✦ Synopsis

Abstract

The disiloxane‐bridged zirconocene complexes, tetramethyldisiloxanediylbis (cyclopentadienyl)zirconium dichloride and tetramethyldisiloxanediylbis(cyclopentadienyl) dimethylzirconium initiate the homopolymerization of ethene as well as the copolymerization of ethene and α‐olefin with a modified methylaluminoxane as cocatalyst. The catalyst systems give resonable activity but the molecular weight of polyethene decreases drastically with increasing polymerization temperature.

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