A METALLOCENE CATALYST SYSTEM FOR OLEFIN POLYMERIZATION USING A HETEROPOLYACID AS THE COUNTER-ANION

Authors
SOGA K UOZUMI T KISHI N
Citation
K. Soga et al., A METALLOCENE CATALYST SYSTEM FOR OLEFIN POLYMERIZATION USING A HETEROPOLYACID AS THE COUNTER-ANION, Macromolecular rapid communications, 16(11), 1995, pp. 793-798
Citations number
28
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecular rapid communications → ACNP
ISSN journal
10221336
Volume
16
Issue
11
Year of publication
1995
Pages
793 - 798
Database
ISI
SICI code
1022-1336(1995)16:11<793:AMCSFO>2.0.ZU;2-U
Abstract
Polymerization of ethylene and propene were conducted with bis(cyclope ntadienylzirconium dichloride (Cp(2)ZrCl(2)) and ethylenebis(1-indenyl )zirconium dichloride (Et(Ind)(2)ZrCl2) combined with trialkylaluminiu m compounds using heteropolyacids as the counter-anions, giving linear polyethylene and isotactic polypropene, respectively. No polymer was obtained when using Cp(2)Zr(CH3)(2) instead of Cp(2)ZrCl(2). The mecha nism of the formation of active species is briefly discussed on the ba sis of these results.