Copolymerization of ethylene with allylbenzene using rac-ethylenebis(indenyl)zirconium dichloride/methylaluminoxane as a catalyst

Citation
Dj. Byun et al., Copolymerization of ethylene with allylbenzene using rac-ethylenebis(indenyl)zirconium dichloride/methylaluminoxane as a catalyst, MACRO RAPID, 20(8), 1999, pp. 419-422
Citations number
18
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULAR RAPID COMMUNICATIONS
ISSN journal
10221336 → ACNP
Volume
20
Issue
8
Year of publication
1999
Pages
419 - 422
Database
ISI
SICI code
1022-1336(199908)20:8<419:COEWAU>2.0.ZU;2-U
Abstract
Ethylene was copolymerized with allylbenzene using rac-ethylenebis(indenyl) zirconium dichloride (Et(Ind)(2)ZrCl2)/methylaluminoxane (MAO) as a cataly st. Analysis of the copolymers obtained revealed that chain transfer to alu minium was a preferred chain transfer reaction during the copolymerization. It seems that chain termination through aluminium transfer is induced by t he allylbenzene unit incorporated in the propagating chain end. Hydroxy-ter minated ethylene copolymers were obtained when the copolymer solution was e xposed to air before precipitation of the polymer in acidic methanol.