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Phase morphology and crystallinity of poly(vinylidene fluoride)/ poly(ethylene oxide) piezoelectric blend membranes

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Phase morphology and crystallinity of poly(vinylidene fluoride)/ poly(ethylene oxide) piezoelectric blend membranes

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dc.contributor.author Tamaño-Machiavello, M. N. es_ES
dc.contributor.author Costa, C. M. es_ES
dc.contributor.author Molina Mateo, José es_ES
dc.contributor.author Torregrosa Cabanilles, Constantino es_ES
dc.contributor.author Meseguer Dueñas, José María es_ES
dc.contributor.author Kalkura, S. N. es_ES
dc.contributor.author Lanceros-Mendez, S. es_ES
dc.contributor.author Sabater i Serra, Roser es_ES
dc.contributor.author Gómez Ribelles, José Luís es_ES
dc.date.accessioned 2018-07-16T07:04:32Z
dc.date.available 2018-07-16T07:04:32Z
dc.date.issued 2015 es_ES
dc.identifier.uri http://hdl.handle.net/10251/105870
dc.description.abstract [EN] Polymer blends based on poly(vinylidene fluoride), PVDF and poly(ethylene oxide), PEO, with varying compositions have been prepared by solvent casting, the polymer blend films being obtained from solutions in dimethyl formamide at 70ºC. Under these conditions PVDF crystallizes from solution while PEO remains in the molten state. Then, PEO crystallizes from the melt confined by PVDF crystalls during cooling to room temperature. PVDF crystallized from DMF solutions adopt predominantly the electroactive β-phase (85%). Nevertheless when PEO is introduced in the polymer blend the β-phase content decreases slightly to 70%. The piezoelectric coefficient (d33) in pristine PVDF is -5 pC/N and decreases with increasing PEO content in the PVDF/PEO blends. Blend morphology, observed by electron and atomic force microscopy, shows the confinement of PEO between the already formed PVDF crystals. On the other hand the sample contraction when PEO is extracted from the blend with water (which is not a solvent for PVDF) allows proving the co-continuity of both phases in the blend. PEO crystallization kinetics have been characterized by DSC both in isothermal and cooling scans experiments showing important differences in crystalline fraction and crystallization rate with sample composition. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Materials Today Communications es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject PVDF es_ES
dc.subject PEO es_ES
dc.subject Polymer blends es_ES
dc.subject Piezoelectric polymer es_ES
dc.subject Electron Microscopy Service of the UPV
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.subject.classification FISICA APLICADA es_ES
dc.subject.classification INGENIERIA ELECTRICA es_ES
dc.title Phase morphology and crystallinity of poly(vinylidene fluoride)/ poly(ethylene oxide) piezoelectric blend membranes es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.mtcomm.2015.08.003 es_ES
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Eléctrica - Departament d'Enginyeria Elèctrica es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Termodinámica Aplicada - Departament de Termodinàmica Aplicada es_ES
dc.description.bibliographicCitation Tamaño-Machiavello, MN.; Costa, CM.; Molina Mateo, J.; Torregrosa Cabanilles, C.; Meseguer Dueñas, JM.; Kalkura, SN.; Lanceros-Mendez, S.... (2015). Phase morphology and crystallinity of poly(vinylidene fluoride)/ poly(ethylene oxide) piezoelectric blend membranes. Materials Today Communications. 4:214-221. doi:10.1016/j.mtcomm.2015.08.003 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.mtcomm.2015.08.003 es_ES
dc.description.upvformatpinicio 214 es_ES
dc.description.upvformatpfin 221 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 4 es_ES
dc.identifier.eissn 2352-4928 es_ES
dc.relation.pasarela 300471 es_ES


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