Ion Extractant as Cosurfactant at the Water-Oil Interface in Microemulsions

Abstract : Bicontinuous microemulsions are investigated as a model system for the specific adsorption phenomena of metal ions at the water–oil interface. Mixing an extremely hydrophobic ion extractant – tributyl phosphate (TBP) used here as co-surfactant- with an extremely hydrophilic sugar-based surfactant, we describe a new type of functionalized microemulsions that shows the classical Winsor phases, by varying the surfactant/extractant ratio. We focus on the Winsor III-type microemulsions by determining the phase diagrams whereas the microstructures were accessed by performing small angle neutron scattering experiments. Ultimately, these microemulsions may pave the way for the design of new selective ion extraction processes.
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https://hal.umontpellier.fr/hal-02106871
Contributeur : Olivier Diat <>
Soumis le : mardi 23 avril 2019 - 13:38:53
Dernière modification le : lundi 6 mai 2019 - 14:22:02

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C. Bauer, P. Bauduin, Olivier Diat, T. Zemb. Ion Extractant as Cosurfactant at the Water-Oil Interface in Microemulsions. Tenside, Surfactants, Detergents, 2010, 47 (5), pp.307-311. ⟨10.3139/113.110082⟩. ⟨hal-02106871⟩

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