Structure of mixed DTAB/DDAB adsorbed layers on quartz: a neutron reflectometry and atomic force microscopy study

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dc.contributor.authorBlom, ACMen_AU
dc.contributor.authorWarr, GGen_AU
dc.contributor.authorNelson, Aen_AU
dc.date.accessioned2008-04-04T03:14:02Zen_AU
dc.date.accessioned2010-04-30T05:02:36Zen_AU
dc.date.available2008-04-04T03:14:02Zen_AU
dc.date.available2010-04-30T05:02:36Zen_AU
dc.date.issued2007-11-15en_AU
dc.date.statistics2007-11en_AU
dc.description.abstractThe structure and composition of adsorbed layers formed by mixtures of dodecyltrimethylammonium bromide (DTAB) and didodecyldimethylammonium bromide (DDAB) on quartz have been determined using a combination of atomic force microscopy and neutron reflectometry. The mixed adsorbed layer was found to be substantially enriched in DDAB, stabilising the formation of a laterally unstructured bilayer even when there is only as little as 1 mol% present in the bulk mixed solute. At even higher DTAB content the adsorbed film morphology gradually transforms to globules over a very narrow composition range. DDAB was found to be significantly excluded from the mixed adsorbed film only after it was completely transformed into globular aggregates, the equilibrium adsorbed layer morphology of DTAB. © 2007, Elsevier Ltd.en_AU
dc.identifier.citationBlom, A., Warr, G. G., & Nelson, A. (2007). Structure of mixed DTAB/DDAB adsorbed layers on quartz: a neutron reflectometry and atomic force microscopy study. Colloids and Surfaces a-Physicochemical and Engineering Aspects, 310(1-3), 1-8. doi:10.1016/j.colsurfa.2007.05.052en_AU
dc.identifier.govdoc1162en_AU
dc.identifier.issn0927-7757en_AU
dc.identifier.issue1-3en_AU
dc.identifier.journaltitleColloids and Surfaces a-Physicochemical and Engineering Aspectsen_AU
dc.identifier.pagination45139en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.colsurfa.2007.05.052en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/1032en_AU
dc.identifier.volume310en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectSurfactantsen_AU
dc.subjectAdsorptionen_AU
dc.subjectAtomic force microscopyen_AU
dc.subjectSiliconen_AU
dc.subjectNeutronsen_AU
dc.subjectMicaen_AU
dc.subjectSediment-water interfacesen_AU
dc.subjectInterfacesen_AU
dc.subjectBromidesen_AU
dc.titleStructure of mixed DTAB/DDAB adsorbed layers on quartz: a neutron reflectometry and atomic force microscopy studyen_AU
dc.typeJournal Articleen_AU
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