Conformational mobility in a polymer with mesogenic side groups- dielectric and DSC studies

Detalhes bibliográficos
Autor(a) principal: Mano, J. F.
Data de Publicação: 1999
Outros Autores: Alves, N. M., Meseguer-Dueñas, J. M., Gómez Ribelles, J. L.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/13401
Resumo: The relaxation times of the conformational rearrangements of the main-chain segments of a liquid crystalline side-chain polymer was determined from differential scanning calorimetry experiments in the temperature interval around and below its glass transition. Phenomenological models with fitting parameters were used to evaluate the temperature dependence of the relaxation times and the form parameter of the relaxation times distribution. These parameters were compared with its counterparts in the dielectric a relaxation process which appear in the temperature interval immediately above the calorimetric glass transition. For the temperature interval below the calorimetric glass transition the differential scanning calorimetry (DSC) results were compared with the dielectric results obtained by the thermally stimulated depolarisation technique.
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spelling Conformational mobility in a polymer with mesogenic side groups- dielectric and DSC studiesDifferential scanning calorimetryDielectric spectroscopy; TSDCDielectric spectroscopyTSDCScience & TechnologyThe relaxation times of the conformational rearrangements of the main-chain segments of a liquid crystalline side-chain polymer was determined from differential scanning calorimetry experiments in the temperature interval around and below its glass transition. Phenomenological models with fitting parameters were used to evaluate the temperature dependence of the relaxation times and the form parameter of the relaxation times distribution. These parameters were compared with its counterparts in the dielectric a relaxation process which appear in the temperature interval immediately above the calorimetric glass transition. For the temperature interval below the calorimetric glass transition the differential scanning calorimetry (DSC) results were compared with the dielectric results obtained by the thermally stimulated depolarisation technique.Elsevier Sci LtdUniversidade do MinhoMano, J. F.Alves, N. M.Meseguer-Dueñas, J. M.Gómez Ribelles, J. L.19991999-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/13401eng0032-3861info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:51:26Zoai:repositorium.sdum.uminho.pt:1822/13401Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:50:20.337612Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Conformational mobility in a polymer with mesogenic side groups- dielectric and DSC studies
title Conformational mobility in a polymer with mesogenic side groups- dielectric and DSC studies
spellingShingle Conformational mobility in a polymer with mesogenic side groups- dielectric and DSC studies
Mano, J. F.
Differential scanning calorimetry
Dielectric spectroscopy; TSDC
Dielectric spectroscopy
TSDC
Science & Technology
title_short Conformational mobility in a polymer with mesogenic side groups- dielectric and DSC studies
title_full Conformational mobility in a polymer with mesogenic side groups- dielectric and DSC studies
title_fullStr Conformational mobility in a polymer with mesogenic side groups- dielectric and DSC studies
title_full_unstemmed Conformational mobility in a polymer with mesogenic side groups- dielectric and DSC studies
title_sort Conformational mobility in a polymer with mesogenic side groups- dielectric and DSC studies
author Mano, J. F.
author_facet Mano, J. F.
Alves, N. M.
Meseguer-Dueñas, J. M.
Gómez Ribelles, J. L.
author_role author
author2 Alves, N. M.
Meseguer-Dueñas, J. M.
Gómez Ribelles, J. L.
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Mano, J. F.
Alves, N. M.
Meseguer-Dueñas, J. M.
Gómez Ribelles, J. L.
dc.subject.por.fl_str_mv Differential scanning calorimetry
Dielectric spectroscopy; TSDC
Dielectric spectroscopy
TSDC
Science & Technology
topic Differential scanning calorimetry
Dielectric spectroscopy; TSDC
Dielectric spectroscopy
TSDC
Science & Technology
description The relaxation times of the conformational rearrangements of the main-chain segments of a liquid crystalline side-chain polymer was determined from differential scanning calorimetry experiments in the temperature interval around and below its glass transition. Phenomenological models with fitting parameters were used to evaluate the temperature dependence of the relaxation times and the form parameter of the relaxation times distribution. These parameters were compared with its counterparts in the dielectric a relaxation process which appear in the temperature interval immediately above the calorimetric glass transition. For the temperature interval below the calorimetric glass transition the differential scanning calorimetry (DSC) results were compared with the dielectric results obtained by the thermally stimulated depolarisation technique.
publishDate 1999
dc.date.none.fl_str_mv 1999
1999-01-01T00:00:00Z
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://hdl.handle.net/1822/13401
url http://hdl.handle.net/1822/13401
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0032-3861
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.publisher.none.fl_str_mv Elsevier Sci Ltd
publisher.none.fl_str_mv Elsevier Sci Ltd
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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