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A kinetic study of novel bimetallic titanocene catalyst for syndiospecific styrene polymerization
Author(s) -
Yim JinHeong,
Young Cho Kuk
Publication year - 2007
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.25673
Subject(s) - bimetallic strip , catalysis , cationic polymerization , styrene , polymerization , polymer chemistry , metallocene , chemistry , ligand (biochemistry) , materials science , copolymer , organic chemistry , polymer , biochemistry , receptor
A kinetic study of a syndiospecific polymerization was performed with two kinds of catalysts: Cp*Ti(O(C 6 H 4 )CMe 2 (C 6 H 4 )O)TiCp* [bimetallic system] and Cp*Ti(OMe) 3 [monometallic system]. The purpose of this study was to determine the reasons behind the high activity of a bimetallic catalyst system. The active site structures of the two kinds of catalysts appears to be similar to the cationic Ti [III] species having η 5 ‐pentamethylcyclopentadienyl ligand, while the rate of the activation process of the bimetallic catalyst was found to be higher than that of the monometallic catalyst. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007