Publication:
Synthesis and structural analysis of phenoxy-substituted half-titanocenes with different anionic ligands, Cp*TiX(Y)(O-2,6-<sup>i</sup>Pr<inf>2</inf>C<inf>6</inf>H<inf>3</inf>): Effect of anionic ligands (X,Y) in ethylene/styrene copolymerization

Issued Date

2012-12-01

Resource Type

Article

ISSN

13811169

DOI

10.1016/j.molcata.2012.08.022

Other identifier(s)

2-s2.0-84867572001

Rights

Mahidol University

Rights Holder(s)

SCOPUS

Bibliographic Citation

Journal of Molecular Catalysis A: Chemical. Vol.365, (2012), 136-145

Suggested Citation

Kotohiro Nomura, Supathana Pracha, Khamphee Phomphrai, Shohei Katao, Dong Hyun Kim, Hyun Joon Kim, Naohiro Suzuki Synthesis and structural analysis of phenoxy-substituted half-titanocenes with different anionic ligands, Cp*TiX(Y)(O-2,6-<sup>i</sup>Pr<inf>2</inf>C<inf>6</inf>H<inf>3</inf>): Effect of anionic ligands (X,Y) in ethylene/styrene copolymerization. Journal of Molecular Catalysis A: Chemical. Vol.365, (2012), 136-145. doi:10.1016/j.molcata.2012.08.022 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/13902

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Title

Synthesis and structural analysis of phenoxy-substituted half-titanocenes with different anionic ligands, Cp*TiX(Y)(O-2,6-<sup>i</sup>Pr<inf>2</inf>C<inf>6</inf>H<inf>3</inf>): Effect of anionic ligands (X,Y) in ethylene/styrene copolymerization

Author(s)

Kotohiro Nomura
 Supathana Pracha
 Khamphee Phomphrai
 Shohei Katao
 Dong Hyun Kim
 Hyun Joon Kim
 Naohiro Suzuki

Other Contributor(s)

Tokyo Metropolitan University
 Mahidol University
 Nara Institute of Science and Technology
 Korea Institute of Industrial Technology Evaluation and Planning

Abstract

Synthesis and structural analysis of various phenoxy modified half-titanocenes with different anionic ligands of the type, Cp*TiX(Y)(O-2,6- i Pr 2 C 6 H 3 ) [X = Y = pyr (2, pyr = C 4 H 4 N), pz (3, C 3 H 3 N 2 ), OPh (4); X = Cl, Y = OCH(CF 3 ) 2 (5)] have been explored. Ethylene/styrene copolymerization by 2, 5, and Cp*TiCl 2 (O-2,6- i Pr 2 C 6 H 3 ) (1) in the presence of [PhN(H)Me 2 ][B(C 6 F 5 ) 4 ] and Al(i-Bu) 3 /Al(n-octyl) 3 afforded poly(ethylene-co-styrene)s as the sole product even at 55 and 70 °C, whereas the pyrazolato analogue (3) showed the negligible activity and 4 afforded a mixture of copolymer and syndiotactic polystyrene: 5 showed the better catalyst performance in terms of activity, suggesting that the anionic ligand (X,Y) plays a role in this catalysis. © 2012 Elsevier B.V.

Keyword(s)

Chemical Engineering
 Chemistry

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URI

https://repository.li.mahidol.ac.th/handle/20.500.14594/13902

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