Atom transfer radical polymerization by [RuCl2(PPh3)2(amine)] catalysts: Cyclic amines as tuner of reactivity

Detalhes bibliográficos
Autor(a) principal: Cruz, Thais R. [UNESP]
Data de Publicação: 2017
Outros Autores: Borim, Patrícia [UNESP], Goi, Beatriz E. [UNESP], Silva Sá, José L., Lima-Neto, Benedito S., Carvalho, Valdemiro P. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1007/s10965-017-1354-9
http://hdl.handle.net/11449/170330
Resumo: Atom transfer radical polymerizations (ATRP) of styrene (St) and methyl methacrylate (MMA) mediated by [RuCl2(PPh3)2(amine)] complexes, with amine = pyrrolidine (1), piperidine (2), or perhydroazepine (3), were investigated as a function of time, temperature, and concentrations of monomers and 2-bromoisobutyrate as initiator. The plots of ln([M]0/[M]) vs. time and molecular weights vs. monomer conversion were linear and the dispersity indexes decreased with increasing monomer conversions. The complexes 1, 2, and 3 were able to mediate the polymerizations with acceptable rate and level of control. Differences in the rate and control of polymerization were observed in the order 3 > 2 > 1 for both monomers. The activities were discussed considering the steric hindrance and electronic characteristics of the amines as ancillary ligands in the metal centres, considering studies by cyclic voltammetry and NMR.
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spelling Atom transfer radical polymerization by [RuCl2(PPh3)2(amine)] catalysts: Cyclic amines as tuner of reactivityATRPMethyl methacrylatePolymerizationRutheniumStyreneAtom transfer radical polymerizations (ATRP) of styrene (St) and methyl methacrylate (MMA) mediated by [RuCl2(PPh3)2(amine)] complexes, with amine = pyrrolidine (1), piperidine (2), or perhydroazepine (3), were investigated as a function of time, temperature, and concentrations of monomers and 2-bromoisobutyrate as initiator. The plots of ln([M]0/[M]) vs. time and molecular weights vs. monomer conversion were linear and the dispersity indexes decreased with increasing monomer conversions. The complexes 1, 2, and 3 were able to mediate the polymerizations with acceptable rate and level of control. Differences in the rate and control of polymerization were observed in the order 3 > 2 > 1 for both monomers. The activities were discussed considering the steric hindrance and electronic characteristics of the amines as ancillary ligands in the metal centres, considering studies by cyclic voltammetry and NMR.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Faculdade de Ciências e Tecnologia UNESP Univ Estadual PaulistaInstituto de Química de São Carlos Universidade de São PauloCentro de Ciências da Natureza Universidade Estadual do PiauíFaculdade de Ciências e Tecnologia UNESP Univ Estadual PaulistaFAPESP: 2013/10002-0Universidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Universidade Estadual do PiauíCruz, Thais R. [UNESP]Borim, Patrícia [UNESP]Goi, Beatriz E. [UNESP]Silva Sá, José L.Lima-Neto, Benedito S.Carvalho, Valdemiro P. [UNESP]2018-12-11T16:50:18Z2018-12-11T16:50:18Z2017-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1007/s10965-017-1354-9Journal of Polymer Research, v. 24, n. 11, 2017.1572-89351022-9760http://hdl.handle.net/11449/17033010.1007/s10965-017-1354-92-s2.0-850325908412-s2.0-85032590841.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Polymer Research0,4030,403info:eu-repo/semantics/openAccess2023-10-03T06:08:00Zoai:repositorio.unesp.br:11449/170330Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T13:56:05.677649Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Atom transfer radical polymerization by [RuCl2(PPh3)2(amine)] catalysts: Cyclic amines as tuner of reactivity
title Atom transfer radical polymerization by [RuCl2(PPh3)2(amine)] catalysts: Cyclic amines as tuner of reactivity
spellingShingle Atom transfer radical polymerization by [RuCl2(PPh3)2(amine)] catalysts: Cyclic amines as tuner of reactivity
Cruz, Thais R. [UNESP]
ATRP
Methyl methacrylate
Polymerization
Ruthenium
Styrene
title_short Atom transfer radical polymerization by [RuCl2(PPh3)2(amine)] catalysts: Cyclic amines as tuner of reactivity
title_full Atom transfer radical polymerization by [RuCl2(PPh3)2(amine)] catalysts: Cyclic amines as tuner of reactivity
title_fullStr Atom transfer radical polymerization by [RuCl2(PPh3)2(amine)] catalysts: Cyclic amines as tuner of reactivity
title_full_unstemmed Atom transfer radical polymerization by [RuCl2(PPh3)2(amine)] catalysts: Cyclic amines as tuner of reactivity
title_sort Atom transfer radical polymerization by [RuCl2(PPh3)2(amine)] catalysts: Cyclic amines as tuner of reactivity
author Cruz, Thais R. [UNESP]
author_facet Cruz, Thais R. [UNESP]
Borim, Patrícia [UNESP]
Goi, Beatriz E. [UNESP]
Silva Sá, José L.
Lima-Neto, Benedito S.
Carvalho, Valdemiro P. [UNESP]
author_role author
author2 Borim, Patrícia [UNESP]
Goi, Beatriz E. [UNESP]
Silva Sá, José L.
Lima-Neto, Benedito S.
Carvalho, Valdemiro P. [UNESP]
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
Universidade Estadual do Piauí
dc.contributor.author.fl_str_mv Cruz, Thais R. [UNESP]
Borim, Patrícia [UNESP]
Goi, Beatriz E. [UNESP]
Silva Sá, José L.
Lima-Neto, Benedito S.
Carvalho, Valdemiro P. [UNESP]
dc.subject.por.fl_str_mv ATRP
Methyl methacrylate
Polymerization
Ruthenium
Styrene
topic ATRP
Methyl methacrylate
Polymerization
Ruthenium
Styrene
description Atom transfer radical polymerizations (ATRP) of styrene (St) and methyl methacrylate (MMA) mediated by [RuCl2(PPh3)2(amine)] complexes, with amine = pyrrolidine (1), piperidine (2), or perhydroazepine (3), were investigated as a function of time, temperature, and concentrations of monomers and 2-bromoisobutyrate as initiator. The plots of ln([M]0/[M]) vs. time and molecular weights vs. monomer conversion were linear and the dispersity indexes decreased with increasing monomer conversions. The complexes 1, 2, and 3 were able to mediate the polymerizations with acceptable rate and level of control. Differences in the rate and control of polymerization were observed in the order 3 > 2 > 1 for both monomers. The activities were discussed considering the steric hindrance and electronic characteristics of the amines as ancillary ligands in the metal centres, considering studies by cyclic voltammetry and NMR.
publishDate 2017
dc.date.none.fl_str_mv 2017-10-01
2018-12-11T16:50:18Z
2018-12-11T16:50:18Z
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/10.1007/s10965-017-1354-9
Journal of Polymer Research, v. 24, n. 11, 2017.
1572-8935
1022-9760
http://hdl.handle.net/11449/170330
10.1007/s10965-017-1354-9
2-s2.0-85032590841
2-s2.0-85032590841.pdf
url http://dx.doi.org/10.1007/s10965-017-1354-9
http://hdl.handle.net/11449/170330
identifier_str_mv Journal of Polymer Research, v. 24, n. 11, 2017.
1572-8935
1022-9760
10.1007/s10965-017-1354-9
2-s2.0-85032590841
2-s2.0-85032590841.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of Polymer Research
0,403
0,403
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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
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