Effect of Borate Cocatalysts toward Activity and Comonomer Incorporation in Ethylene Copolymerization by Half-Titanocene Catalysts in Methylcyclohexane

[Image: see text] Ethylene copolymerizations with 2-methyl-1-pentene, 1-dodecene (DD), vinylcyclohexane (VCH), [Me(2)Si(C(5)Me(4))(N(t)Bu)]TiCl(2) (1), Cp*TiMe(2)(O-2,6-(i)Pr(2)-4-RC(6)H(2)) [R = H (2), SiEt(3) (3)]–borate, and [A(H)](+)[BAr(4)](−) [Ar = C(6)F(5); A(H)(+) = N(+)(H)Me(n-C(18)H(37))(2...

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Autores principales: Kitphaitun, Suphitchaya, Fujimoto, Takuya, Ochi, Yosuke, Nomura, Kotohiro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9955119/
https://www.ncbi.nlm.nih.gov/pubmed/36855669
http://dx.doi.org/10.1021/acsorginorgau.2c00020
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author Kitphaitun, Suphitchaya
Fujimoto, Takuya
Ochi, Yosuke
Nomura, Kotohiro
author_facet Kitphaitun, Suphitchaya
Fujimoto, Takuya
Ochi, Yosuke
Nomura, Kotohiro
author_sort Kitphaitun, Suphitchaya
collection PubMed
description [Image: see text] Ethylene copolymerizations with 2-methyl-1-pentene, 1-dodecene (DD), vinylcyclohexane (VCH), [Me(2)Si(C(5)Me(4))(N(t)Bu)]TiCl(2) (1), Cp*TiMe(2)(O-2,6-(i)Pr(2)-4-RC(6)H(2)) [R = H (2), SiEt(3) (3)]–borate, and [A(H)](+)[BAr(4)](−) [Ar = C(6)F(5); A(H)(+) = N(+)(H)Me(n-C(18)H(37))(2), N(+)(H)(CH(2)CF(3))(n-C(18)H(37))(2), HO(+)(n-C(14)H(29))(2)·O(n-C(14)H(29))(2), HO(+)(n-C(16)H(33))(2)·O(n-C(16)H(33))(2); Ar = C(10)F(7), A(H)(+) = HO(+)(n-C(14)H(29))(2)·O(n-C(14)H(29))(2) (B5), N(+)(H)(CH(2)CF(3))(n-C(18)H(37))(2)] catalyst systems conducted in methylcyclohexane (MCH) exhibited better comonomer incorporation than those conducted in toluene (in the presence of methylaluminoxane (MAO) or borate cocatalysts). The activity was affected by the borate cocatalyst and 1,3–B5 catalyst systems in MCH and showed the highest activity in the ethylene copolymerizations with VCH and DD.
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spelling pubmed-99551192023-02-27 Effect of Borate Cocatalysts toward Activity and Comonomer Incorporation in Ethylene Copolymerization by Half-Titanocene Catalysts in Methylcyclohexane Kitphaitun, Suphitchaya Fujimoto, Takuya Ochi, Yosuke Nomura, Kotohiro ACS Org Inorg Au [Image: see text] Ethylene copolymerizations with 2-methyl-1-pentene, 1-dodecene (DD), vinylcyclohexane (VCH), [Me(2)Si(C(5)Me(4))(N(t)Bu)]TiCl(2) (1), Cp*TiMe(2)(O-2,6-(i)Pr(2)-4-RC(6)H(2)) [R = H (2), SiEt(3) (3)]–borate, and [A(H)](+)[BAr(4)](−) [Ar = C(6)F(5); A(H)(+) = N(+)(H)Me(n-C(18)H(37))(2), N(+)(H)(CH(2)CF(3))(n-C(18)H(37))(2), HO(+)(n-C(14)H(29))(2)·O(n-C(14)H(29))(2), HO(+)(n-C(16)H(33))(2)·O(n-C(16)H(33))(2); Ar = C(10)F(7), A(H)(+) = HO(+)(n-C(14)H(29))(2)·O(n-C(14)H(29))(2) (B5), N(+)(H)(CH(2)CF(3))(n-C(18)H(37))(2)] catalyst systems conducted in methylcyclohexane (MCH) exhibited better comonomer incorporation than those conducted in toluene (in the presence of methylaluminoxane (MAO) or borate cocatalysts). The activity was affected by the borate cocatalyst and 1,3–B5 catalyst systems in MCH and showed the highest activity in the ethylene copolymerizations with VCH and DD. American Chemical Society 2022-08-01 /pmc/articles/PMC9955119/ /pubmed/36855669 http://dx.doi.org/10.1021/acsorginorgau.2c00020 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Kitphaitun, Suphitchaya
Fujimoto, Takuya
Ochi, Yosuke
Nomura, Kotohiro
Effect of Borate Cocatalysts toward Activity and Comonomer Incorporation in Ethylene Copolymerization by Half-Titanocene Catalysts in Methylcyclohexane
title Effect of Borate Cocatalysts toward Activity and Comonomer Incorporation in Ethylene Copolymerization by Half-Titanocene Catalysts in Methylcyclohexane
title_full Effect of Borate Cocatalysts toward Activity and Comonomer Incorporation in Ethylene Copolymerization by Half-Titanocene Catalysts in Methylcyclohexane
title_fullStr Effect of Borate Cocatalysts toward Activity and Comonomer Incorporation in Ethylene Copolymerization by Half-Titanocene Catalysts in Methylcyclohexane
title_full_unstemmed Effect of Borate Cocatalysts toward Activity and Comonomer Incorporation in Ethylene Copolymerization by Half-Titanocene Catalysts in Methylcyclohexane
title_short Effect of Borate Cocatalysts toward Activity and Comonomer Incorporation in Ethylene Copolymerization by Half-Titanocene Catalysts in Methylcyclohexane
title_sort effect of borate cocatalysts toward activity and comonomer incorporation in ethylene copolymerization by half-titanocene catalysts in methylcyclohexane
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9955119/
https://www.ncbi.nlm.nih.gov/pubmed/36855669
http://dx.doi.org/10.1021/acsorginorgau.2c00020
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