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Article Dans Une Revue Physical Review Letters Année : 1990

Depletion interactions and fluid-solid equilibrium in emulsions

Résumé

Silicon-oil-in-water emulsions stabilized with sodium dodecylsulfate (SDS), have been studied. They exhibit practically no coalescence, whereas for high surfactant concentrations a ‘‘creaming’’ of the emulsion is observed. We demonstrate that this behavior is related to a fluid-solid phase transition due to an attractive interaction induced by the depletion of SDS micelles. A simple model for the fluid-solid transition is proposed, in quantitative agreement with experiment.
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hal-04186464 , version 1 (23-08-2023)
hal-04186464 , version 2 (28-08-2023)

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Jérôme Bibette, Didier Roux, Frédéric Nallet. Depletion interactions and fluid-solid equilibrium in emulsions. Physical Review Letters, 1990, 65 (19), pp.2470-2473. ⟨10.1103/PhysRevLett.65.2470⟩. ⟨hal-04186464v2⟩

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