Investigating the Nature of the Active Species in Bis(imino)pyridine Cobalt Ethylene Polymerization Catalysts

Igor E. Soshnikov, Nina V. Semikolenova, Alexey N. Bushmelev, Konstantin P. Bryliakov, Oleg Y. Lyakin, Carl Redshaw, Vladimir A. Zakharov, Evgenii P. Talsi

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31 Citations (Scopus)

Abstract

The activation of bis(imino)pyridine cobalt-based catalysts of ethylene polymerization with methylalumoxane (MAO), AlMe3, and AlMe3/[CPh3][B(C6F5)4] has been studied by 1H, 2H, and 19F NMR and EPR spectroscopy. The nature of the active sites of polymerization is discussed. The polymerization kinetics and the polymer properties for the different catalyst/activator systems were correlated with spectroscopic data.
Original languageEnglish
Pages (from-to)6003-6013
Number of pages11
JournalOrganometallics
Volume28
Issue number20
Early online date23 Sep 2009
DOIs
Publication statusPublished - 2009

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