Light scattering from oil-water interfaces : measurements of low interfacial tensions

A. Pouchelon , J. Meunier , D. Langevin , A.M. Cazabat

Interfacial tension has been deduced from the spectrum of the light scattered by the interface. The results are relative to water-toluene-sodium dodecyl sulfate-butanol 1 mixtures. The lowest measured values are of the order of 10-3 dyn./cm. It is expected that measurements down to 10 -5-10-6 dyn./cm will be possible with this technique. The results have been related to several properties of the bulk phases : viscosity, electrical conductivity, and diffusion coefficients of micellar species.

Mots clés: light scattering; organic compounds; surface tension; viscosity of liquids; water; interfacial tensions; viscosity; diffusion coefficients; micellar species; electrical conductivity; oil water interface; toluene sodium dodecyl sulphate butanol 1 oil; diffusion in liquids; electrical conductivity of liquids

Domaines: Articles anciens

A. Pouchelon, J. Meunier, D. Langevin, A.M. Cazabat. Light scattering from oil-water interfaces : measurements of low interfacial tensions. Journal de Physique Lettres, 1980, 41 (10), pp.239-242. ⟨10.1051/jphyslet:019800041010023900⟩. ⟨jpa-00231769⟩