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Liquid Crystals and their Application
Russian Journal

Zhidkie kristally i ikh prakticheskoe ispol'zovanie

Жидкие кристаллы и их практическое использование

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Rus Eng


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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2016, 16 (3), 19—29.
DOI: 10.18083/LCAppl.2016.3.19

Thermodynamic Characteristics of the Surface of Spherical Micelles in Sodium n-Alkylsulphates Solution

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
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

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

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