HOMOGENEOUS GROUP-4 METALLOCENE ZIEGLER-NATTA CATALYSTS - THE INFLUENCE OF CYCLOPENTADIENYL-RING SUBSTITUENTS

Authors
MOHRING PC COVILLE NJ
Citation
Pc. Mohring et Nj. Coville, HOMOGENEOUS GROUP-4 METALLOCENE ZIEGLER-NATTA CATALYSTS - THE INFLUENCE OF CYCLOPENTADIENYL-RING SUBSTITUENTS, Journal of organometallic chemistry, 479(1-2), 1994, pp. 1-29
Citations number
296
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Journal of organometallic chemistry → ACNP
ISSN journal
0022328X
Volume
479
Issue
1-2
Year of publication
1994
Pages
1 - 29
Database
ISI
SICI code
0022-328X(1994)479:1-2<1:HGMZC->2.0.ZU;2-Y
Abstract
A new range of metallocene catalysts, Cp2MCl2 (M = Ti, Zr, Hf) has bee n developed in the past decade, which, in the presence of alumoxanes a re highly efficient at polymerizing alpha-olefins (ethene, propene, et c.). Variation of the substituents attached to the cyclopentadienyl ri ngs leads to changes in catalyst selectivity and activity. Further, fo r alpha-olefin polymerisation, variations of the ring substituents lea ds to variation of the tacticity of the polymer product. Studies in wh ich the influence of the ring substituents have been explored have bee n reviewed.