Additive Effects of Dialkylaluminum Hydrides on Propylene-l,3-Butadiene Copolymerization Using an Isospecific Zirconocene Catalyst | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

5716024

Reference Type

Journal Article

Title

Additive Effects of Dialkylaluminum Hydrides on Propylene-l,3-Butadiene Copolymerization Using an Isospecific Zirconocene Catalyst

Author(s)

Ishihara, T; Ban, H; Hagihara, H; Shiono, T

Year

2006

Is Peer Reviewed?

Journal

Studies in surface science and catalysis
ISSN: 0167-2991

Publisher

Elsevier

Book Title

Studies in Surface Science and Catalysis

Volume

161

Page Numbers

197-200

DOI

10.1016/S0167-2991(06)80456-8

Web of Science Id

WOS:000283536300032

URL

http://www.sciencedirect.com/science/article/pii/S0167299106804568
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Abstract

Additive effects of dialkylaluminum hydrides on propylene–1,3-butadiene copolymerization were investigated with an isospecific zirconocene catalyst, rac-dimethylsilylbis(2-methyl-4-phenylindenyl)zirconium dichloride (4Ph), activated by modified methylaluminoxane. Dialkylaluminum hydrides improved the apparent selectivity for 1,2-insertion of 1,3-butadiene to give a pendant vinyl group. 13C NMR analysis of the copolymers indicated that the dialkylaluminum hydride converted the 1,4-inserted butadiene unit in the copolymer to tetramethylene unit after methanolysis.

Editor(s)

Terano, Minoru