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Copolymerization of styrene with (Z)-1,3-pentadiene in the presence of a syndiotactic-specific catalyst

✍ Scribed by Pasquale Longo; Antonio Proto; Patrizia Oliva; Irene Sessa; Adolfo Zambelli

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 123 KB
Volume: 35
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(19970930)35:13<2697::aid-pola14>3.0.co;2-6

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✦ Synopsis

Copolymerization of styrene with (Z )-1,3-pentadiene affords copolymers mostly containing 1,2 pentadiene units. Both the styrene and the pentadiene units are in syndiotactic arrangement but the comonomer sequence distribution is far from bernoullian. Interestingly, the behavior of (Z )-1,3-pentadiene does not change much when polymerization temperature raises from 020 to /20ЊC, notwithstanding that (Z )-1,3-pentadiene affords a 1,2-syndiotactic homopolymer at 020ЊC but a prevailingly 1,4 cis homopolymer at /20ЊC.

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