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

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Federal do Rio Grande do Sul-
Autor(es): dc.creatorKunrath, Fábio A. [UNESP]-
Autor(es): dc.creatorDe Souza, Roberto F.-
Autor(es): dc.creatorCasagrande Jr., Osvaldo L.-
Data de aceite: dc.date.accessioned2022-08-04T22:01:23Z-
Data de disponibilização: dc.date.available2022-08-04T22:01:23Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2000-04-14-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1002/(sici)1521-3927(20000301)21:6<277-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/219326-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/219326-
Descrição: dc.descriptionEthylene 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.-
Descrição: dc.descriptionInstituto de Química de Araraquara UNESP, Araraquara, SP, 14800-900-
Descrição: dc.descriptionLaboratory of Molecular Catalysis Instituto de Química Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 91501-970-
Descrição: dc.descriptionInstituto de Química de Araraquara UNESP, Araraquara, SP, 14800-900-
Formato: dc.format277-280-
Idioma: dc.languageen-
Relação: dc.relationMacromolecular Rapid Communications-
???dc.source???: dc.sourceScopus-
Título: dc.titleCombination of nickel and titanium complexes containing nitrogen ligands as catalyst for polyethylene reactor blending-
Tipo de arquivo: dc.typelivro digital-
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