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Characterization of Crosslinked Poly(vinyl alcohol)-Based Membranes with Different Hydrolysis Degrees for Their Use as Electrolytes in Direct Methanol Fuel Cells

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Characterization of Crosslinked Poly(vinyl alcohol)-Based Membranes with Different Hydrolysis Degrees for Their Use as Electrolytes in Direct Methanol Fuel Cells

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dc.contributor.author Martinez-Felipe, Alfonso es_ES
dc.contributor.author Moliner Estopiñán, Cristina Elia es_ES
dc.contributor.author Imrie, Corrie Thomas es_ES
dc.contributor.author Ribes Greus, María Desamparados es_ES
dc.date.accessioned 2017-07-10T10:17:18Z
dc.date.available 2017-07-10T10:17:18Z
dc.date.issued 2012-04-15
dc.identifier.issn 0021-8995
dc.identifier.uri http://hdl.handle.net/10251/84840
dc.description.abstract The effect of the degree of hydrolysis of poly(vinyl alcohol) (PVA) substrates on the preparation and properties of crosslinked membranes prepared via esterification with sulfosuccinic acid (SSA) has been studied using attenuated total reflectance-Fourier transform spectroscopy (ATR-FTIR) and thermogravimetric analysis (TGA). Three PVA substrates with degrees of hydrolysis of 89, 96, and 99% were crosslinked using SSA at high temperatures. FTIR spectroscopy revealed that esterification occurred in all the membranes and to some extent, prior to heat treatment. The final morphology of the membranes was dependent on both the SSA concentration and the composition of the PVA substrate. Thermogravimetric analysis showed an increase in the thermal stability of the PVA-SSA membranes with respect to their PVA substrates arising from the formation of a crosslinked structure. In addition, TGA revealed the presence of free and tightly bound water in the PVA-SSA membranes. Thermal treatment had a more pronounced effect on the properties of the PVA substrates having higher degrees of hydrolysis. The results from the swelling tests, the ionic exchange capacities (IEC) and the tests in DMFC monocells demonstrated that a balance between water and methanol selectivity and ionic conduction determines the potential of these materials to act as electrolytes in fuel cells es_ES
dc.description.sponsorship Contract grant sponsor: Generalitat Valenciana; contract grant number: Grisolia and Forteza 2010 and 2011. en_EN
dc.language Inglés es_ES
dc.publisher Wiley es_ES
dc.relation Spanish Ministry of Science and Innovation grant IT2009-0074 es_ES
dc.relation Spanish Ministry of Science and Innovation grant UPOVCE-3E-013 es_ES
dc.relation Spanish Ministry of Science and Innovation grant ENE2007-67584-C03 es_ES
dc.relation UPOVCE-3E-013 es_ES
dc.relation Generalitat Valenciana; contract grant number: Grisolia and Forteza 2010 and 2011 es_ES
dc.relation.ispartof Journal of Applied Polymer Science es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Crosslinking es_ES
dc.subject FTIR es_ES
dc.subject Polymer synthesis and characterization es_ES
dc.subject Renewable resources es_ES
dc.subject Thermogravimetric analysis (TGA) es_ES
dc.subject ATR FTIR es_ES
dc.subject Bound waters es_ES
dc.subject Cross linked membranes es_ES
dc.subject Crosslinked es_ES
dc.subject Crosslinked structures es_ES
dc.subject Degree of hydrolysis es_ES
dc.subject FTIR spectroscopy es_ES
dc.subject High temperature es_ES
dc.subject Higher-degree es_ES
dc.subject Hydrolysis degree es_ES
dc.subject Ionic exchange es_ES
dc.subject Methanol selectivity es_ES
dc.subject Preparation and properties es_ES
dc.subject Renewable resource es_ES
dc.subject Swelling test es_ES
dc.subject Direct methanol fuel cells (DMFC) es_ES
dc.subject Electrolytes es_ES
dc.subject Esterification es_ES
dc.subject Esters es_ES
dc.subject Fourier transform infrared spectroscopy es_ES
dc.subject Heat treatment es_ES
dc.subject Hydrolysis es_ES
dc.subject Ion exchange es_ES
dc.subject Membranes es_ES
dc.subject Methanol es_ES
dc.subject Methanol fuels es_ES
dc.subject Polyvinyl alcohols es_ES
dc.subject Spectroscopy es_ES
dc.subject Substrates es_ES
dc.subject Thermodynamic stability es_ES
dc.subject Thermogravimetric analysis es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Characterization of Crosslinked Poly(vinyl alcohol)-Based Membranes with Different Hydrolysis Degrees for Their Use as Electrolytes in Direct Methanol Fuel Cells es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1002/app.35138
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Tecnología de Materiales - Institut de Tecnologia de Materials es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería del Diseño - Escola Tècnica Superior d'Enginyeria del Disseny es_ES
dc.description.bibliographicCitation Martinez-Felipe, A.; Moliner Estopiñán, CE.; Imrie, CT.; Ribes Greus, MD. (2012). Characterization of Crosslinked Poly(vinyl alcohol)-Based Membranes with Different Hydrolysis Degrees for Their Use as Electrolytes in Direct Methanol Fuel Cells. Journal of Applied Polymer Science. 124:1000-1011. doi:10.1002/app.35138 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.1002/app.35138 es_ES
dc.description.upvformatpinicio 1000 es_ES
dc.description.upvformatpfin 1011 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 124 es_ES
dc.relation.senia 218513 es_ES


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