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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., 2015, 15 (3), 103—108.
DOI: 10.18083/LCAppl.2015.3.103

Effect of Azo Dyes Molecules Dimerization on Properties of LC – Dye Systems Under Laser Irradiation

N. N. Barabanova1, V. V. Belyaev1, D. L. Bogdanov1, A. L.Bugrimov1, A. K. Dadivanyan1, A. P. Nazarov1, V. G. Chigrinov2

Author affiliations
1Moscow State Regional University,
10а Radio St., Moscow, 105005, Russia
2Hong Kong University of Science and Technology,
Clear Water Bay, Kowloon, Hong Kong, China

Dimerization of azo dyes molecules used for photoorientation of liquid crystals is considered. The values of thermodynamic potentials of this process are found. A probability of the formation of dye molecules dimers is evaluated. The effect of dimerization on polar and azimuthal anchoring energy of LC – azo dye system is shown. The bonds conjugation transfer via intermolecular hydrogen bond is revealed and the anisotropy of polarizability of the hydrogen bond is evaluated.

Keywords: dyes, liquid crystals, dimerization, anchoring energy, hydrogen bond, anisotropy of polarizability

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