Combination of nickel and titanium complexes containing nitrogen ligands as catalyst for polyethylene reactor blending

Detalhes bibliográficos
Autor(a) principal: Kunrath, Fábio A. [UNESP]
Data de Publicação: 2000
Outros Autores: De Souza, Roberto F., Casagrande Jr., Osvaldo L.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1002/(sici)1521-3927(20000301)21:6<277
http://hdl.handle.net/11449/219326
Resumo: Ethylene was polymerized using a combination of Ni(diimine)Cl2 (1) (diimine = 1,4-bis(2,6-diisopropylphenyl)-acenaphthenediimine) and {TpMs*}TiCl3 (2) (TpMs* = hydridobis(3-mesitylpyrazol-1-yl)(5-mesitylpyrazol-1-yl)) compounds in the presence of methylaluminoxane (MAO) at 30°C. The productivity reaches a maximum at XNi = 0.75 (1 400 kg of PE/mol[M] · h), and the produced polyethylene (PE) showed maximal melt flow index (0.13 g/10 min) and minimal intrinsic viscosity (2.24 dL/g) compared to polyethylenes obtained with different values of nickel loading fractions (XNi). Productivity, intrinsic viscosity data, as well as melt flow index measurements markedly depend upon the content of the late transition metal, thus suggesting a synergic effect between nickel and titanium catalysts. © Wiley-VCH Verlag GmbH, 2000.
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spelling Combination of nickel and titanium complexes containing nitrogen ligands as catalyst for polyethylene reactor blendingEthylene was polymerized using a combination of Ni(diimine)Cl2 (1) (diimine = 1,4-bis(2,6-diisopropylphenyl)-acenaphthenediimine) and {TpMs*}TiCl3 (2) (TpMs* = hydridobis(3-mesitylpyrazol-1-yl)(5-mesitylpyrazol-1-yl)) compounds in the presence of methylaluminoxane (MAO) at 30°C. The productivity reaches a maximum at XNi = 0.75 (1 400 kg of PE/mol[M] · h), and the produced polyethylene (PE) showed maximal melt flow index (0.13 g/10 min) and minimal intrinsic viscosity (2.24 dL/g) compared to polyethylenes obtained with different values of nickel loading fractions (XNi). Productivity, intrinsic viscosity data, as well as melt flow index measurements markedly depend upon the content of the late transition metal, thus suggesting a synergic effect between nickel and titanium catalysts. © Wiley-VCH Verlag GmbH, 2000.Instituto de Química de Araraquara UNESP, Araraquara, SP, 14800-900Laboratory of Molecular Catalysis Instituto de Química Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 91501-970Instituto de Química de Araraquara UNESP, Araraquara, SP, 14800-900Universidade Estadual Paulista (UNESP)Universidade Federal do Rio Grande do SulKunrath, Fábio A. [UNESP]De Souza, Roberto F.Casagrande Jr., Osvaldo L.2022-04-28T18:55:01Z2022-04-28T18:55:01Z2000-04-14info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article277-280http://dx.doi.org/10.1002/(sici)1521-3927(20000301)21:6<277Macromolecular Rapid Communications, v. 21, n. 6, p. 277-280, 2000.1022-1336http://hdl.handle.net/11449/21932610.1002/(sici)1521-3927(20000301)21:6<2772-s2.0-1042304407Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMacromolecular Rapid Communicationsinfo:eu-repo/semantics/openAccess2022-04-28T18:55:01Zoai:repositorio.unesp.br:11449/219326Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:07:47.663561Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Combination of nickel and titanium complexes containing nitrogen ligands as catalyst for polyethylene reactor blending
title Combination of nickel and titanium complexes containing nitrogen ligands as catalyst for polyethylene reactor blending
spellingShingle Combination of nickel and titanium complexes containing nitrogen ligands as catalyst for polyethylene reactor blending
Kunrath, Fábio A. [UNESP]
title_short Combination of nickel and titanium complexes containing nitrogen ligands as catalyst for polyethylene reactor blending
title_full Combination of nickel and titanium complexes containing nitrogen ligands as catalyst for polyethylene reactor blending
title_fullStr Combination of nickel and titanium complexes containing nitrogen ligands as catalyst for polyethylene reactor blending
title_full_unstemmed Combination of nickel and titanium complexes containing nitrogen ligands as catalyst for polyethylene reactor blending
title_sort Combination of nickel and titanium complexes containing nitrogen ligands as catalyst for polyethylene reactor blending
author Kunrath, Fábio A. [UNESP]
author_facet Kunrath, Fábio A. [UNESP]
De Souza, Roberto F.
Casagrande Jr., Osvaldo L.
author_role author
author2 De Souza, Roberto F.
Casagrande Jr., Osvaldo L.
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
Universidade Federal do Rio Grande do Sul
dc.contributor.author.fl_str_mv Kunrath, Fábio A. [UNESP]
De Souza, Roberto F.
Casagrande Jr., Osvaldo L.
description Ethylene was polymerized using a combination of Ni(diimine)Cl2 (1) (diimine = 1,4-bis(2,6-diisopropylphenyl)-acenaphthenediimine) and {TpMs*}TiCl3 (2) (TpMs* = hydridobis(3-mesitylpyrazol-1-yl)(5-mesitylpyrazol-1-yl)) compounds in the presence of methylaluminoxane (MAO) at 30°C. The productivity reaches a maximum at XNi = 0.75 (1 400 kg of PE/mol[M] · h), and the produced polyethylene (PE) showed maximal melt flow index (0.13 g/10 min) and minimal intrinsic viscosity (2.24 dL/g) compared to polyethylenes obtained with different values of nickel loading fractions (XNi). Productivity, intrinsic viscosity data, as well as melt flow index measurements markedly depend upon the content of the late transition metal, thus suggesting a synergic effect between nickel and titanium catalysts. © Wiley-VCH Verlag GmbH, 2000.
publishDate 2000
dc.date.none.fl_str_mv 2000-04-14
2022-04-28T18:55:01Z
2022-04-28T18:55:01Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1002/(sici)1521-3927(20000301)21:6<277
Macromolecular Rapid Communications, v. 21, n. 6, p. 277-280, 2000.
1022-1336
http://hdl.handle.net/11449/219326
10.1002/(sici)1521-3927(20000301)21:6<277
2-s2.0-1042304407
url http://dx.doi.org/10.1002/(sici)1521-3927(20000301)21:6<277
http://hdl.handle.net/11449/219326
identifier_str_mv Macromolecular Rapid Communications, v. 21, n. 6, p. 277-280, 2000.
1022-1336
10.1002/(sici)1521-3927(20000301)21:6<277
2-s2.0-1042304407
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Macromolecular Rapid Communications
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 277-280
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128759081992192

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