Multiblock copolymers of sulfonated PSU/PPSU Poly(ether sulfone)s as solid electrolytes for proton exchange membrane fuel cells

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Show simple item record Ureña Torres, María de las Nieves Pérez Prior, María Teresa Rio, Carmen Del Varez, Alejandro Sánchez, Jean Yves Iojoiu, Cristina Levenfeld Laredo, Belén 2020-10-14T12:11:56Z 2021-04-10T23:00:05Z 2019-04-10
dc.identifier.bibliographicCitation Electrochimica acta, 302, April 2019, 428-440
dc.identifier.issn 0013-4686
dc.identifier.issn 1873-3859 (online)
dc.description.abstract Sulfonated multiblock copolymers composed of Polysulfone (PSU) and Polyphenylsulfone (PPSU) poly(ether sulfone) segments (SPSU/SPPSU) are synthesized for the first time by polycondensation in a "one-pot two-step synthesis" of commercial monomers, followed by sulfonation reaction with trimethylsilyl chlorosulfonate (TMSCS). Both segments are responsible for proton conductivity, although the PSU block has greater affinity to be sulfonated. Even though no microphase separation is detected, the resulting ionomers exhibit good mechanical properties due to the non-sulfonated blocks remaining and to the high molecular weights of the ionomers. The chemical structure is confirmed by H-1-NMR, F-19-NMR and FTIR analysis. The degree of sulfonation (0.93-1.58) is determined from the IEC values and H-1-NMR spectra. In situ through-plane proton conductivity measured on the MEAs is 34.1 mS cm(-1) at 70 degrees C. A maximum power density of 400 mW cm(-2), a current density of 1100 mA cm(-2) and outstanding thermo-mechanical stability, these proton-conducting membranes can therefore be implemented in PEMFC
dc.description.sponsorship This work was supported by mobility grant of IAAB from Universidad Carlos III de Madrid and the Projects from the regional government [Comunidad de Madrid through MATERYENER3CM S2013/MIT-2753 and S2013/MAE-2975 PILCONAER along with European Social Fund (ESF)]. In addition, funds from the Spanish Government, MINECO [MAT2016-78362-C4-3R and ENE2017-86711-C3-1-R] are gratefully acknowledged.
dc.language.iso eng
dc.publisher Elsevier Ltd.
dc.rights © 2019 Elsevier Ltd. All rights reserved.
dc.rights This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.subject.other Block copolymer
dc.subject.other Sulfonation
dc.subject.other Polysulfone
dc.subject.other PEMFC
dc.subject.other Proton exchange membranes
dc.subject.other Conducting polymer membranes
dc.title Multiblock copolymers of sulfonated PSU/PPSU Poly(ether sulfone)s as solid electrolytes for proton exchange membrane fuel cells
dc.type article
dc.subject.eciencia Materiales
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. MAT2016-78362-C4-3-R
dc.relation.projectID Gobierno de España. ENE2017-86711-C3-1-R
dc.relation.projectID Comunidad de Madrid. S2013/MIT-2753/MATERYENER3CM
dc.relation.projectID Comunidad de Madrid. S2013/MAE-2975/PILCONAER
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 428
dc.identifier.publicationlastpage 440
dc.identifier.publicationtitle ELECTROCHIMICA ACTA
dc.identifier.publicationvolume 302
dc.identifier.uxxi AR/0000023340
dc.contributor.funder Comunidad de Madrid
dc.contributor.funder Ministerio de Economía y Competitividad (España)
dc.contributor.funder Universidad Carlos III de Madrid
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