Tailoring poly(vinylidene fluoride-co-chlorotrifluoroethylene) microstructure and physicochemical properties by exploring its binary phase diagram with dimethylformamide

Detalhes bibliográficos
Autor(a) principal: Sousa, R. E.
Data de Publicação: 2015
Outros Autores: Ferreira, J. C. C., Costa, C. M., Machado, A. V., Silva, Maria Manuela, Lanceros-Méndez, S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/38779
Resumo: Poly(vinylidene fluoride-co-chlorotrifluoroethylene), PVDF-CTFE, membranes were prepared by solven casting from dimethylformamide, DMF. The preparation conditions involved a systematic variation of polymer/solvent ratio and solvent evaporation temperature. The microstructural variations of the PVDF-CTFE membranes depend on the different regions of the PVDF-CTFE/DMF phase diagram, explained by the Flory-Huggins theory. The effect of the polymer/solvent ratio and solvent evaporation temperature on the morphology, degree of porosity, β-phase content, degree of crystallinity, mechanical, dielectric and piezoelectric properties of the PVDF-CTFE polymer were evaluated. In this binary system, the porous microstructure is attributed to a spinodal decomposition of the liquid-liquid phase separation. For a given polymer/solvent ratio, 20 wt%, and higher evaporation solvent temperature, the β-phase content is around 82% and the piezoelectric coefficient, d33, is - 4 pC/N.
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spelling Tailoring poly(vinylidene fluoride-co-chlorotrifluoroethylene) microstructure and physicochemical properties by exploring its binary phase diagram with dimethylformamidePVDF-CTFEMembranesThermal induced phase separationPhase diagramphase diagramsfluoropolymersCiências Naturais::Ciências FísicasEngenharia e Tecnologia::Engenharia dos MateriaisScience & TechnologyPoly(vinylidene fluoride-co-chlorotrifluoroethylene), PVDF-CTFE, membranes were prepared by solven casting from dimethylformamide, DMF. The preparation conditions involved a systematic variation of polymer/solvent ratio and solvent evaporation temperature. The microstructural variations of the PVDF-CTFE membranes depend on the different regions of the PVDF-CTFE/DMF phase diagram, explained by the Flory-Huggins theory. The effect of the polymer/solvent ratio and solvent evaporation temperature on the morphology, degree of porosity, β-phase content, degree of crystallinity, mechanical, dielectric and piezoelectric properties of the PVDF-CTFE polymer were evaluated. In this binary system, the porous microstructure is attributed to a spinodal decomposition of the liquid-liquid phase separation. For a given polymer/solvent ratio, 20 wt%, and higher evaporation solvent temperature, the β-phase content is around 82% and the piezoelectric coefficient, d33, is - 4 pC/N.This work is funded by FEDER funds through the “Programa Operacional Factores de Competitividade – COMPETE” and by national funds from FCT – Fundação para a Ciência e a Tecnologia, in the framework of the strategic project Strategic Project PEST-C/FIS/UI607/2014 and PEST-C/QUI/UI0686/2013). The authors also thank funding from Matepro –Optimizing Materials and Processes”, ref. NORTE-07-0124FEDER-000037”, co-funded by the “Programa Operacional Regional do Norte” (ON.2 – O Novo Norte), under the “Quadro de Referência Estratégico Nacional” (QREN), through the “Fundo Europeu de Desenvolvimento Regional” (FEDER), and grant SFRH/BD/68499/2010 (C.M.C.). The authors thank Solvay for kindly supplying the high quality materials and the Departmento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, Spain, for hosting a research stay in which the theoretical work was performed.WileyUniversidade do MinhoSousa, R. E.Ferreira, J. C. C.Costa, C. M.Machado, A. V.Silva, Maria ManuelaLanceros-Méndez, S.20152015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/38779engSousa, R. E., Ferreira, J. C. C., Costa, C. M., Machado, A. V., Silva, M. M., & Lanceros-Mendez, S. (2015). Tailoring Poly(vinylidene fluoride-co-chlorotrifluoroethylene) Microstructure and Physicochemical Properties by Exploring its Binary Phase Diagram with Dimethylformamide. Journal of Polymer Science Part B-Polymer Physics, 53(11), 761-773. doi: 10.1002/polb.236920887-626610.1002/polb.23692info: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:RCAAP2023-07-21T12:44:48Zoai:repositorium.sdum.uminho.pt:1822/38779Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:42:33.279806Repositório 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 Tailoring poly(vinylidene fluoride-co-chlorotrifluoroethylene) microstructure and physicochemical properties by exploring its binary phase diagram with dimethylformamide
title Tailoring poly(vinylidene fluoride-co-chlorotrifluoroethylene) microstructure and physicochemical properties by exploring its binary phase diagram with dimethylformamide
spellingShingle Tailoring poly(vinylidene fluoride-co-chlorotrifluoroethylene) microstructure and physicochemical properties by exploring its binary phase diagram with dimethylformamide
Sousa, R. E.
PVDF-CTFE
Membranes
Thermal induced phase separation
Phase diagram
phase diagrams
fluoropolymers
Ciências Naturais::Ciências Físicas
Engenharia e Tecnologia::Engenharia dos Materiais
Science & Technology
title_short Tailoring poly(vinylidene fluoride-co-chlorotrifluoroethylene) microstructure and physicochemical properties by exploring its binary phase diagram with dimethylformamide
title_full Tailoring poly(vinylidene fluoride-co-chlorotrifluoroethylene) microstructure and physicochemical properties by exploring its binary phase diagram with dimethylformamide
title_fullStr Tailoring poly(vinylidene fluoride-co-chlorotrifluoroethylene) microstructure and physicochemical properties by exploring its binary phase diagram with dimethylformamide
title_full_unstemmed Tailoring poly(vinylidene fluoride-co-chlorotrifluoroethylene) microstructure and physicochemical properties by exploring its binary phase diagram with dimethylformamide
title_sort Tailoring poly(vinylidene fluoride-co-chlorotrifluoroethylene) microstructure and physicochemical properties by exploring its binary phase diagram with dimethylformamide
author Sousa, R. E.
author_facet Sousa, R. E.
Ferreira, J. C. C.
Costa, C. M.
Machado, A. V.
Silva, Maria Manuela
Lanceros-Méndez, S.
author_role author
author2 Ferreira, J. C. C.
Costa, C. M.
Machado, A. V.
Silva, Maria Manuela
Lanceros-Méndez, S.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Sousa, R. E.
Ferreira, J. C. C.
Costa, C. M.
Machado, A. V.
Silva, Maria Manuela
Lanceros-Méndez, S.
dc.subject.por.fl_str_mv PVDF-CTFE
Membranes
Thermal induced phase separation
Phase diagram
phase diagrams
fluoropolymers
Ciências Naturais::Ciências Físicas
Engenharia e Tecnologia::Engenharia dos Materiais
Science & Technology
topic PVDF-CTFE
Membranes
Thermal induced phase separation
Phase diagram
phase diagrams
fluoropolymers
Ciências Naturais::Ciências Físicas
Engenharia e Tecnologia::Engenharia dos Materiais
Science & Technology
description Poly(vinylidene fluoride-co-chlorotrifluoroethylene), PVDF-CTFE, membranes were prepared by solven casting from dimethylformamide, DMF. The preparation conditions involved a systematic variation of polymer/solvent ratio and solvent evaporation temperature. The microstructural variations of the PVDF-CTFE membranes depend on the different regions of the PVDF-CTFE/DMF phase diagram, explained by the Flory-Huggins theory. The effect of the polymer/solvent ratio and solvent evaporation temperature on the morphology, degree of porosity, β-phase content, degree of crystallinity, mechanical, dielectric and piezoelectric properties of the PVDF-CTFE polymer were evaluated. In this binary system, the porous microstructure is attributed to a spinodal decomposition of the liquid-liquid phase separation. For a given polymer/solvent ratio, 20 wt%, and higher evaporation solvent temperature, the β-phase content is around 82% and the piezoelectric coefficient, d33, is - 4 pC/N.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-01-01T00:00:00Z
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/1822/38779
url http://hdl.handle.net/1822/38779
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Sousa, R. E., Ferreira, J. C. C., Costa, C. M., Machado, A. V., Silva, M. M., & Lanceros-Mendez, S. (2015). Tailoring Poly(vinylidene fluoride-co-chlorotrifluoroethylene) Microstructure and Physicochemical Properties by Exploring its Binary Phase Diagram with Dimethylformamide. Journal of Polymer Science Part B-Polymer Physics, 53(11), 761-773. doi: 10.1002/polb.23692
0887-6266
10.1002/polb.23692
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 Wiley
publisher.none.fl_str_mv Wiley
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
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