Wormlike micelle formation of novel alkyl-tri(ethylene glycol)-glucoside carbohydrate surfactants: Structure–function relationships and rheology

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dc.contributor.authorMoore, JEen_AU
dc.contributor.authorMccoy, TMen_AU
dc.contributor.authorde Campo, Len_AU
dc.contributor.authorSokolova, AVen_AU
dc.contributor.authorGarvey, CJen_AU
dc.contributor.authorPearson, Gen_AU
dc.contributor.authorWilkinson, BLen_AU
dc.contributor.authorTabor, RFen_AU
dc.date.accessioned2018-09-14T02:56:21Zen_AU
dc.date.available2018-09-14T02:56:21Zen_AU
dc.date.issued2018-11-01en_AU
dc.date.statistics2018-09-10en_AU
dc.description.abstractCarbohydrates are appealing non-ionic surfactant head-groups as they are naturally abundant, generally biocompatible and biodegradable, and readily functionalized. Here, seven novel carbohydrate based surfactants (CBS) have been synthesized that contain a tri-ethylene glycol (TEG) linker between a glucose head-group and alkyl tail-group, with linear saturated (C8–18) and unsaturated (C18:1) alkyl chains. The aqueous adsorption and self-assembly of these surfactants was explored using tensiometry and small- and ultra-small-angle neutron scattering (SANS and USANS). With SANS we observed elongation from spherical to cylindrical micelles with increasing alkyl chain length. C16 and C18 chains exhibited pronounced Krafft points, yet formed worm-like micelles as single components upon heating to 43 and 48 °C respectively. The introduction of mono-unsaturation in the form of a C18:1 chain reduced the Krafft point and gave a surfactant that produced worm-like micelles in water without additives at room temperature. We also observed micellar elongation for C12 and C14 chains at 50 °C due to dehydration of the TEG linker. The room temperature worm-like micelles were further characterized using rheo-SANS and rheology, revealing the C18:1 surfactant to exhibit near ideal Maxwell behavior at low concentrations (2.9 wt.%). These results provide insight into structure-function relationships for CBS, and demonstrate a promising molecular candidate for the formation of viscoelastic worm-like micellar solutions. © 2018 Elsevier Inc.en_AU
dc.identifier.citationMoore, J. E., McCoy, T. M., de Campo, L., Sokolova, A. V., Garvey, C. J., Pearson, G., Wilkson, B. L., & Tabor, R. F. (2018). Wormlike micelle formation of novel alkyl-tri(ethylene glycol)-glucoside carbohydrate surfactants: Structure–function relationships and rheology. Journal of Colloid and Interface Science, 529, 464-475. doi:10.1016/j.jcis.2018.05.060en_AU
dc.identifier.govdoc9101en_AU
dc.identifier.issn0021-9797en_AU
dc.identifier.journaltitleJournal of Colloid and Interface Scienceen_AU
dc.identifier.pagination464-475en_AU
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0021979718305812en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/8984en_AU
dc.identifier.volume529en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectCarbohydratesen_AU
dc.subjectScatteringen_AU
dc.subjectBiological materialsen_AU
dc.subjectColloidsen_AU
dc.subjectGlucoseen_AU
dc.subjectSynthesisen_AU
dc.titleWormlike micelle formation of novel alkyl-tri(ethylene glycol)-glucoside carbohydrate surfactants: Structure–function relationships and rheologyen_AU
dc.typeJournal Articleen_AU
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