Key intermediates in metallocene-and post-metallocene-catalyzed polymerization

Talsi, E. P., Bryliakov, K. P., Semikolenova, N. V., Zakharov, V. A. and Bochmann, M. ORCID: https://orcid.org/0000-0001-7736-5428 (2007) Key intermediates in metallocene-and post-metallocene-catalyzed polymerization. Kinetics and Catalysis, 48 (4). pp. 490-504. ISSN 0023-1584

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Abstract

The structures of intermediates formed upon the activation by methylaluminoxane (MAO) of a wide range of metallocene and post-metallocene catalysts of olefin polymerization were studied by C-13, H-1, and F-19 NMR. For all metallocenes considered (L2ZrCl2 and L2TiCl2), under conditions similar to real polymerization conditions (Al/Zr > 200), two types of intermediates were identified in the reaction solution, namely, heterodinuclear ion pairs [L-2 M(mu-Me)(2)AlMe2](+)[Me-MAO](-) (III) and zwitterionic intermediates L-2 MMe+

Item Type:	Article
Additional Information:	7th Russian Conference on Mechanisms of Catalytic Reactions JUL 02-08, 2006 St Petersburg, RUSSIA
Faculty \ School:	Faculty of Science > School of Chemistry
UEA Research Groups:	Faculty of Science > Research Groups > Synthetic Chemistry (former - to 2017) Faculty of Science > Research Groups > Chemistry of Light and Energy Faculty of Science > Research Groups > Chemistry of Materials and Catalysis
Depositing User:	Rachel Smith
Date Deposited:	16 Jun 2011 13:41
Last Modified:	24 Oct 2022 01:33
URI:	https://ueaeprints.uea.ac.uk/id/eprint/32761
DOI:	10.1134/s0023158407040052

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