Tailoring poly(vinylidene fluoride-co-chlorotrifluoroethylene) microstructure and physicochemical properties by exploring its binary phase diagram with dimethylformamide
| dc.contributor.author | Sousa, R. E. | por |
| dc.contributor.author | Ferreira, J. C. C. | por |
| dc.contributor.author | Costa, C. M. | por |
| dc.contributor.author | Machado, A. V. | por |
| dc.contributor.author | Silva, Maria Manuela | por |
| dc.contributor.author | Lanceros-Méndez, S. | por |
| dc.date.accessioned | 2015-12-09T09:57:55Z | |
| dc.date.issued | 2015 | |
| dc.description.abstract | 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. | por |
| dc.description.sponsorship | 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. | por |
| dc.distribution | international | por |
| dc.identifier.citation | 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 | por |
| dc.identifier.doi | 10.1002/polb.23692 | por |
| dc.identifier.issn | 0887-6266 | por |
| dc.identifier.issn | 1099-0488 | por |
| dc.identifier.uri | https://hdl.handle.net/1822/38779 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | Wiley | por |
| dc.relation | info:eu-repo/grantAgreement/FCT/3599-PPCDT/137353/PT | por |
| dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/132953/PT | por |
| dc.relation | SFRH/BD/68499/2010 | por |
| dc.rights | openAccess | |
| dc.subject | PVDF-CTFE | por |
| dc.subject | Membranes | por |
| dc.subject | Thermal induced phase separation | por |
| dc.subject | Phase diagram | por |
| dc.subject | phase diagrams | por |
| dc.subject | fluoropolymers | por |
| dc.subject.fos | Ciências Naturais::Ciências Físicas | por |
| dc.subject.fos | Engenharia e Tecnologia::Engenharia dos Materiais | por |
| dc.subject.wos | Science & Technology | por |
| dc.title | Tailoring poly(vinylidene fluoride-co-chlorotrifluoroethylene) microstructure and physicochemical properties by exploring its binary phase diagram with dimethylformamide | por |
| dc.type | article | por |
| dspace.entity.type | Publication | en |
| oaire.citationEndPage | 773 | por |
| oaire.citationIssue | 11 | por |
| oaire.citationStartPage | 761 | por |
| oaire.citationTitle | Journal of Polymer Science, Part B: Polymer Physics | por |
| oaire.citationVolume | 53 | por |
| sdum.journal | Journal of Polymer Science, Part B: Polymer Physics | por |
| sdum.publicationstatus | published | por |
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