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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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We are pleased to inform that the journal Liquid Crystals and their Application is included in Web of Science (Emerging Sources Citation Index) and Scopus databases.

Journal



Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2018, 18 (3), 89—93.
DOI: 10.18083/LCAppl.2018.3.89





Electrorheology of Liquid Crystals



S. V. Pasechnik1, D. V. Shmeliova1, S. S. Kharlamov1, O. A. Semina1, A. Sh. Saidgaziev1, V. G. Chigrinov2

Author affiliations
1Problem Laboratory of Molecular Acoustics, Russian Technological University,
20 Sromynka St., Moscow, 107996, Russia
E-mail: s-p-a-s-m@mail.ru
2Hong Kong University of Science and Technology,
Clear Water Bay, Kowloon, Hong Kong

Abstract
The results of experimental investigation of rheological properties of a nematic liquid crystal (NLC) 5CB (4-cyano-4'-pentylbiphenyl) confined to submicron pores of polymer PET-films in the presence of AC electric field are presented. The decay flow method, elaborated previously for plane channels, was successfully adopted and applied to the LC-PET composite media, which can be considered as a number of cylindrical channels, connected in parallel schema, filled with flowing LC. It provides the calculation of the effective shear viscosity as a function of the electric field strength. The character of this function indicates on the electrically induced orientation transformation in LC inside pores due to breaking of a surface anchoring.

Keywords: liquid crystals, electrorheology, 4-cyano-4'-pentylbiphenyl





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