Issue 31, 2011
From the journal:

Dalton Transactions

Effect of ligand substituents in olefinpolymerisation by half-sandwich titanium complexes containing monoanionic iminoimidazolidide ligands–MAO catalyst systems†

Kotohiro Nomura,*ab   Hiroya Fukuda,b   Shohei Katao,b   Michiya Fujiki,b   Hyun Joon Kim,c   Dong-Hyun Kimc  and  Shu Zhanga  

* Corresponding authors

a Department of Chemistry, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioiji, Tokyo, Japan
E-mail: ktnomura@tmu.ac.jp
Fax: +81-42-677-2547
Tel: +82-42-677-2547

b Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara, Japan

c Korea Institute of Industrial Technology, 35-3 Hongcheon-ri, Ipjang-myeon, Seobuk-gu, Cheonan-si, Chungnam, Korea

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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Article information

DOI
https://doi.org/10.1039/C1DT10467E
Article type
Paper
Submitted
18 Mar 2011
Accepted
11 May 2011
First published
01 Jul 2011

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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