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Catalysts 2013, 3(1), 148-156; doi:10.3390/catal3010148
Article

Ethylene Polymerization Using (Imino)vanadium(V) Dichloride Complexes Containing (Anilido)methyl-pyridine, -quinoline Ligands–Halogenated Al Alkyls Catalyst Systems

1
,
2
,
2
 and
1,*
1 Department of Chemistry, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan 2 Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun, Beijing 100190, China
* Author to whom correspondence should be addressed.
Received: 25 December 2012 / Revised: 29 January 2013 / Accepted: 30 January 2013 / Published: 7 February 2013
(This article belongs to the Special Issue Molecular Catalysis for Precise Olefin Polymerization)
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Abstract

The effect of ligand and Al cocatalysts in ethylene polymerization, using V(N-1-adamantyl)Cl2(L) [L = 2-(2,6-Me2C6H3)NCH2(C9H6N), 8-(2,6-Me2C6H3)NCH2(C9H6N)] and V(N-2-MeC6H3)Cl2[2-(2,6-R'2C6H3)NCH2(C5H4N)] (R' = Me, iPr), has been explored. The reaction products in the presence of Et2AlCl or Me2AlCl cocatalyst were polyethylene whereas the reaction product of the 2-methylphenylimido analogues in the presence of MAO cocatalyst was 1-butene with high selectivity, suggesting that the catalyst/cocatalyst nuclearity effect plays a role in this catalysis.
Keywords: ethylene; vanadium catalysts; polymerization; ligand effect ethylene; vanadium catalysts; polymerization; ligand effect
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Igarashi, A.; Zhang, W.; Sun, W.-H.; Nomura, K. Ethylene Polymerization Using (Imino)vanadium(V) Dichloride Complexes Containing (Anilido)methyl-pyridine, -quinoline Ligands–Halogenated Al Alkyls Catalyst Systems. Catalysts 2013, 3, 148-156.

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