Preparation and characterization of proton‐exchange hybrid membranes

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Two types of composite were prepared, based on a thermoplastic polymer, polyvinylidene fluoride (PVDF), and an elastomer, ethylene‐propylene‐diene terpolymer (EPDM), respectively. We obtained both series by addition of an inorganic proton‐conducting antimonic acid derivative (HSb) and polystyrene crosslinked with a small percentage of divinylbenzene (PS‐co‐DVB). From these composites, membranes were obtained and subjected to a heterogeneous‐phase sulfonation reaction with chlorosulfonic acid. All experimental materials were characterized from a morphological and electrical point of view, by means of techniques such as differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), non‐isothermal crystallization and complex impedance analysis. Copyright © 2005 Society of Chemical Industry

Keywords: ionomers; polyblends; proton conductors; sulfonation

Document Type: Research Article


Affiliations: Instituto de Ciencia y Tecnología de Polímeros (CSIC), c/. Juan de la Cierva 3, 28006 Madrid, Spain

Publication date: June 1, 2005

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