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Proceedings Paper

Vibration spectra of the liquid crystal aerosil system
Author(s): G. A. Puchkovskaya; Yuri A. Reznikov; Oleg V. Yaroshchuk; Anatoliy V. Glushchenko; A. A. Yakubov; N. P. Kharchenko
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Paper Abstract

The change of the molecular organization in the liquid crystal (5CB)-aerosol system under the influence of electric field is investigated with the use of IR spectroscopy methods. It is shown that aerosol A-300 addition (10 weight %) to 5CB leads to forming weak hydrogen bonds between the aerosol hydroxyl groups and the (pi) -electrons of benzene rings of 5CB (Si-O- H...(pi) ). Under the influence of electric field (U equals 60 V, f equals 2 kHz) these bonds undergo a rearrangement, the 5CB molecules in the aerosol pores align along a direction of the electric field and then form the new network of hydrogen bonds. In the case of the aerosol modified by the polymethylsyloxane the formation of new hydrogen bonds does not take place and in the electric field the 5CB molecules are easily oriented along the field direction.

Paper Details

Date Published: 29 April 1996
PDF: 8 pages
Proc. SPIE 2795, Nonlinear Optics of Liquid and Photorefractive Crystals, (29 April 1996); doi: 10.1117/12.239195
Show Author Affiliations
G. A. Puchkovskaya, Institute of Physics (Ukraine)
Yuri A. Reznikov, Institute of Physics (Ukraine)
Oleg V. Yaroshchuk, Institute of Physics (Ukraine)
Anatoliy V. Glushchenko, Institute of Physics (Ukraine)
A. A. Yakubov, Samarkand State Univ. (Uzbekistan)
N. P. Kharchenko, Kiev National Univ. (Ukraine)

Published in SPIE Proceedings Vol. 2795:
Nonlinear Optics of Liquid and Photorefractive Crystals
Gertruda V. Klimusheva; Andrey G. Iljin, Editor(s)

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