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Normal micelles and oil-in-water microemulsions in a water-toluene-Tween 80 ternary system

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Abstract

It is revealed that oil-in-water microemulsions of type I according to Winsor’s classification are formed at 293 K in a ternary water-toluene-Tween 80 system. Water-rich corner of the phase diagram is plotted, and the domains of the existence of micellar and microemulsion systems are determined. Different methods (refractometry, precision tensiometry, dynamic and static light scattering, and UV and NMR spectroscopies) are employed to study the properties (hydrodynamic particle radii, the aggregation numbers of nonionic surfactant molecules, and the degrees of hydration) of normal micelles and particles of dispersed phase in oil-in-water microemulsions at different toluene concentrations. The polarity of a microenvironment of the solubilizate is estimated.

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Authors and Affiliations

  1. Department of Chemistry, Moscow State University, Vorob’evy gory, Moscow, 119992, Russia

    M. V. Poteshnova & N. M. Zadymova

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  1. M. V. Poteshnova
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  2. N. M. Zadymova
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Original Russian Text © M.V. Poteshnova, N.M. Zadymova, 2006, published in Kolloidnyi Zhurnal, 2006, Vol. 68, No. 2, pp. 226–236.

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Poteshnova, M.V., Zadymova, N.M. Normal micelles and oil-in-water microemulsions in a water-toluene-Tween 80 ternary system. Colloid J 68, 201–210 (2006). https://doi.org/10.1134/S1061933X06020128

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  • DOI: https://doi.org/10.1134/S1061933X06020128

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