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Issue 31, 2011
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Effect of ligand substituents in olefin polymerisation by half-sandwich titanium complexes containing monoanionic iminoimidazolidide ligands–MAO catalyst systems

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Abstract

Various half-sandwich titanium complexes containing iminoimidazolidide ligands, CpTiCl2[1,3-R2(CH2N)2C[double bond, length as m-dash]N] (1a–d) [R = Ph (a), 2,6-Me2C6H3 (b), cyclohexyl (c), tBu (d)], have been employed as the catalyst precursors for ethylene polymerisation, syndiospecific styrene polymerisation, and copolymerisation of ethylene with 1-hexene in the presence of MAO cocatalyst; 1d showed the highest catalytic activity for ethylene polymerisation whereas 1b showed the highest activity for syndiospecific styrene polymerisation.

Graphical abstract: Effect of ligand substituents in olefin polymerisation by half-sandwich titanium complexes containing monoanionic iminoimidazolidide ligands–MAO catalyst systems

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Publication details

The article was received on 18 Mar 2011, accepted on 11 May 2011 and first published on 01 Jul 2011


Article type: Paper
DOI: 10.1039/C1DT10467E
Citation: Dalton Trans., 2011,40, 7842-7849
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    Effect of ligand substituents in olefin polymerisation by half-sandwich titanium complexes containing monoanionic iminoimidazolidide ligands–MAO catalyst systems

    K. Nomura, H. Fukuda, S. Katao, M. Fujiki, H. J. Kim, D. Kim and S. Zhang, Dalton Trans., 2011, 40, 7842
    DOI: 10.1039/C1DT10467E

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