Humidity-induced phase transitions in ion-containing block copolymer membranes.

dc.contributor.authorPark, MJen_AU
dc.contributor.authorNedoma, AJen_AU
dc.contributor.authorGeissler, PLen_AU
dc.contributor.authorBalsara, NPen_AU
dc.contributor.authorJackson, Aen_AU
dc.contributor.authorCookson, DJen_AU
dc.date.accessioned2008-04-11T06:09:41Zen_AU
dc.date.accessioned2010-04-30T05:06:44Zen_AU
dc.date.available2008-04-11T06:09:41Zen_AU
dc.date.available2010-04-30T05:06:44Zen_AU
dc.date.issued2008-03-25en_AU
dc.date.statistics2008-03en_AU
dc.description.abstractThe phase behavior of ion-containing block copolymer membranes in equilibrium with humidified air is studied as a function of the relative humidity (RH) of the surrounding air, ion content of the copolymer, and temperature. Increasing RH at constant temperature results in both disorder-to-order and order-to-order transitions. In-situ small-angle neutron scattering experiments on the open block copolymer system, when combined with wafer uptake measurement, indicate that the disorder-to-order transition is driven by an increase in the partial molar entropy of the water molecules in the ordered phase relative to that in the disordered phase. This is in contrast to most systems wherein increasing entropy results in stabilization of the disordered phase. © 2008, American Chemical Societyen_AU
dc.identifier.citationPark, M. J., Nedoma, A. J., Geissler, P. L., Balsara, N. P., Jackson, A., & Cookson, D. (2008). Humidity-induced phase transitions in ion-containing block copolymer membranes. Macromolecules, 41(6), 2271-2277. doi:10.1021/ma702320ten_AU
dc.identifier.govdoc1431en_AU
dc.identifier.issn0024-9297en_AU
dc.identifier.issue6en_AU
dc.identifier.journaltitleMacromoleculesen_AU
dc.identifier.pagination2271-2277en_AU
dc.identifier.urihttp://dx.doi.org/10.1021/ma702320ten_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/1060en_AU
dc.identifier.volume41en_AU
dc.language.isoenen_AU
dc.publisherAmerican Chemical Societyen_AU
dc.subjectPolymersen_AU
dc.subjectPolystyreneen_AU
dc.subjectOrganic compoundsen_AU
dc.subjectSolventsen_AU
dc.subjectOrganic polymersen_AU
dc.subjectPetroleum productsen_AU
dc.subjectHydrophylic polymersen_AU
dc.subjectInorganic polymersen_AU
dc.titleHumidity-induced phase transitions in ion-containing block copolymer membranes.en_AU
dc.typeJournal Articleen_AU
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