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V. S. Kuznetsov¹, N. V. Usol'tseva¹, V. P. Zherdev², A. I. Smirnova¹, N. V. Zharnikova¹, V. G. Badelin³

Author affiliations
¹Nanomaterials Research Institute, Ivanovo State University,
39 Ermak St., Ivanovo, 153025, Russia
E-mail: nv_usoltseva@mail.ru
²Ivanovo State Polytechnic University,
21 Sheremetevsky pr., Ivanovo, 153000, Russia
³G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences,
1 Akademicheskaja St., Ivanovo, 153045, Russia

Abstract
A semi-empirical method for determining the interfacial tension in spherical micelles in solutions of mesogenic sodium n-alkylsulfates surfactants is proposed. On the basis of obtained interfacial tension components, Tolmen parameter, electrostatic ion repulsion energy and static permittivity in the surface layer of the micelles of sodium n-alkylsulfate homologues (where the number of carbon atoms in the molecule is equal to 8, 10, 12 and 14) were calculated.

Keywords: surfactants, micelles, curved surfaces, interfacial tension, Tolmen parameter, dielectric constant, sodium n-alkylsulphates