Inorganic modification of block copolymer for medium temperature proton exchange membrane application

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dc.contributor.authorMistry, MKen_AU
dc.contributor.authorChoudhury, NRen_AU
dc.contributor.authorDutta, NKen_AU
dc.contributor.authorKnott, RBen_AU
dc.date.accessioned2010-04-16T05:13:43Zen_AU
dc.date.accessioned2010-04-30T05:08:28Zen_AU
dc.date.available2010-04-16T05:13:43Zen_AU
dc.date.available2010-04-30T05:08:28Zen_AU
dc.date.issued2010-04-01en_AU
dc.date.statistics2010-04-01en_AU
dc.description.abstractNew hybrid membranes have been developed via sol–gel chemistry and solvent directed infiltration method using novel inorganic precursors and sulfonated poly(styrene-b-[ethylene-co-butylene]-b-styrene) (S-SEBS). S-SEBS shows a distinct phase separated morphology which can be used as a structure directing template to drive the inorganic component within the ionic domains of the polymer. Photoacoustic Fourier transform infrared spectroscopy (PA-FTIR) confirms the formation of Si–O–Si and Si–O–P bridges in hybrid membranes which indicate a silicate or phosphosilicate network structure within the hybrid membranes. The presence of the inorganic network within the hybrid membranes improves their thermal stability, viscoelastic properties and water retention at elevated temperatures above 100°C. Scanning electron microscopy (SEM) results show a uniform distribution of the inorganic component within the hybrid membranes and confirm successful incorporation of inorganic particles within S-SEBS membranes. Conductivity of S-SEBS starts to decrease after 60°C due to excessive swelling whereas hybrid membranes show an increase in conductivity after 60°C as the inorganic component reduces excessive swelling in hybrid membranes. SAXS results indicate that S-SEBS has distinct phase separated morphology and show hybrid membranes exhibit a lamellar morphology. © 2010, Elsevier Ltd.en_AU
dc.identifier.citationMistry, M. K., Choudhury, N. R., Dutta, N. K., & Knott, R. (2010). Inorganic modification of block copolymer for medium temperature proton exchange membrane application. Journal of Membrane Science, 351(1-2), 168-177. doi:10.1016/j.memsci.2010.01.044en_AU
dc.identifier.govdoc1545en_AU
dc.identifier.issn0376-7388en_AU
dc.identifier.issue1-2en_AU
dc.identifier.journaltitleJournal of Membrane Scienceen_AU
dc.identifier.pagination168-177en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.memsci.2010.01.044en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3169en_AU
dc.identifier.volume351en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectMembranesen_AU
dc.subjectHybridizationen_AU
dc.subjectScanning electron microscopyen_AU
dc.subjectInorganic compoundsen_AU
dc.subjectSwellingen_AU
dc.subjectCopolymersen_AU
dc.titleInorganic modification of block copolymer for medium temperature proton exchange membrane applicationen_AU
dc.typeJournal Articleen_AU
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