Spectroscopic and voltametric studies in titanium tris(pyrazolyl)borate catalysts

Detalhes bibliográficos
Autor(a) principal: Simplício, Lílian M. T.
Data de Publicação: 2005
Outros Autores: Rocha, Zênis N. da, Gil, Marcelo P., Santos, João Henrique Zimnoch dos, Casagrande Junior, O. L.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/13581
Resumo: Texto completo: acesso restrito.p.96–101
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spelling Simplício, Lílian M. T.Rocha, Zênis N. daGil, Marcelo P.Santos, João Henrique Zimnoch dosCasagrande Junior, O. L.Simplício, Lílian M. T.Rocha, Zênis N. daGil, Marcelo P.Santos, João Henrique Zimnoch dosCasagrande Junior, O. L.2013-11-07T11:21:02Z20051381-1169http://repositorio.ufba.br/ri/handle/ri/13581v.238 n. 1-2Texto completo: acesso restrito.p.96–101The ethylene polymerization using TpMs*TiCl3 (1) (TpMs* = HB(3-mesitylpyrazolyl)2(5-mesitylpyrazolyl)−) and TpMsTiCl3 (2) (TpMs = HB(3-mesityl-pyrazolyl)3−) was performed in toluene or hexane at 60 °C in the presence of MAO or TiBA/MAO (1:1) as cocatalysts. Higher activities were found for the polymerization reactions carried out in hexane, and using a combination of TiBA/MAO as cocatalysts. Absorciometric measurements in the UV–vis region and cyclic voltammetric have shown that such complexes when activated by MAO were not stable. Measurements carried out in the presence 1-hexene have demonstrated the necessity to add the cocatalyst in the presence of an olefin, i.e., ethylene or hexene-1 in order to stabilize the active species. Furthermore, these studies have revealed that after the activation process most of Ti remains as TiIV.Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2013-11-07T11:21:01Z No. of bitstreams: 1 Lílian Simplício.pdf: 316650 bytes, checksum: 5851e02d53e46b1105b105bc9f71bc46 (MD5)Made available in DSpace on 2013-11-07T11:21:02Z (GMT). No. of bitstreams: 1 Lílian Simplício.pdf: 316650 bytes, checksum: 5851e02d53e46b1105b105bc9f71bc46 (MD5) Previous issue date: 2005http://dx.doi.org.ez10.periodicos.capes.gov.br/10.1016/j.molcata.2005.04.043reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBATitaniumTris(pyrazolyl)boratePolymerizationNon-metallocene catalystSpectroscopic and voltametric studies in titanium tris(pyrazolyl)borate catalystsJournal of Molecular Catalysis A: Chemicalinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01info:eu-repo/semantics/openAccessengORIGINALLílian Simplício.pdfLílian Simplício.pdfapplication/pdf316650https://repositorio.ufba.br/bitstream/ri/13581/1/L%c3%adlian%20Simpl%c3%adcio.pdf5851e02d53e46b1105b105bc9f71bc46MD51LICENSElicense.txtlicense.txttext/plain1383https://repositorio.ufba.br/bitstream/ri/13581/2/license.txt05eca2f01d0b3307819d0369dab18a34MD52TEXTLílian Simplício.pdf.txtLílian Simplício.pdf.txtExtracted texttext/plain23653https://repositorio.ufba.br/bitstream/ri/13581/3/L%c3%adlian%20Simpl%c3%adcio.pdf.txte6b92391dfd0988aee9faeb7067c3d73MD53ri/135812022-07-05 14:03:44.666oai:repositorio.ufba.br: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ório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:44Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Spectroscopic and voltametric studies in titanium tris(pyrazolyl)borate catalysts
dc.title.alternative.pt_BR.fl_str_mv Journal of Molecular Catalysis A: Chemical
title Spectroscopic and voltametric studies in titanium tris(pyrazolyl)borate catalysts
spellingShingle Spectroscopic and voltametric studies in titanium tris(pyrazolyl)borate catalysts
Simplício, Lílian M. T.
Titanium
Tris(pyrazolyl)borate
Polymerization
Non-metallocene catalyst
title_short Spectroscopic and voltametric studies in titanium tris(pyrazolyl)borate catalysts
title_full Spectroscopic and voltametric studies in titanium tris(pyrazolyl)borate catalysts
title_fullStr Spectroscopic and voltametric studies in titanium tris(pyrazolyl)borate catalysts
title_full_unstemmed Spectroscopic and voltametric studies in titanium tris(pyrazolyl)borate catalysts
title_sort Spectroscopic and voltametric studies in titanium tris(pyrazolyl)borate catalysts
author Simplício, Lílian M. T.
author_facet Simplício, Lílian M. T.
Rocha, Zênis N. da
Gil, Marcelo P.
Santos, João Henrique Zimnoch dos
Casagrande Junior, O. L.
author_role author
author2 Rocha, Zênis N. da
Gil, Marcelo P.
Santos, João Henrique Zimnoch dos
Casagrande Junior, O. L.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Simplício, Lílian M. T.
Rocha, Zênis N. da
Gil, Marcelo P.
Santos, João Henrique Zimnoch dos
Casagrande Junior, O. L.
Simplício, Lílian M. T.
Rocha, Zênis N. da
Gil, Marcelo P.
Santos, João Henrique Zimnoch dos
Casagrande Junior, O. L.
dc.subject.por.fl_str_mv Titanium
Tris(pyrazolyl)borate
Polymerization
Non-metallocene catalyst
topic Titanium
Tris(pyrazolyl)borate
Polymerization
Non-metallocene catalyst
description Texto completo: acesso restrito.p.96–101
publishDate 2005
dc.date.issued.fl_str_mv 2005
dc.date.accessioned.fl_str_mv 2013-11-07T11:21:02Z
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://repositorio.ufba.br/ri/handle/ri/13581
dc.identifier.issn.none.fl_str_mv 1381-1169
dc.identifier.number.pt_BR.fl_str_mv v.238 n. 1-2
identifier_str_mv 1381-1169
v.238 n. 1-2
url http://repositorio.ufba.br/ri/handle/ri/13581
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.pt_BR.fl_str_mv http://dx.doi.org.ez10.periodicos.capes.gov.br/10.1016/j.molcata.2005.04.043
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
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institution UFBA
reponame_str Repositório Institucional da UFBA
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