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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2009, 3, 28—35.
Structural Changes in Liquid Crystals Capsulated by Acrilic Copolymer in an External Electrical Field
I. A. Kazantseva1, S. A. Bulgakov2, M. M. Johns1, E. V. Stepanov1
Author affiliations 1Lobachevsky State University of Nizhni Novgorod, 23 Gagarin Avenue, Nizhny Novgorod, 603950, Russia E-mail: firstname.lastname@example.org 2Research Institute for Chemistry of Lobachevsky State University of Nizhni Novgorod, 23 Gagarin Avenue, Nizhny Novgorod, 603950, Russia E-mail: email@example.com
Abstract "The blooming effect" of the polymer-dispersed liquid crystal films after the applica-tion of an external electric field was found. The effect is expressed in the difference in trans-mission between two opaque states ΔToff = Toff – T'off (Toff is the transmission in the initial opaque state, T'off is the transmission after the electric field has been switched off). The increase of liquid crystal drop sizes from submicron 0,7 ÷ 0,9 μm up to 1,4 ÷ 1,6 μm was found. The structural film changes uninder an external electric field were investigated. It was also found that the addition of 5 vol. % potassium acetate partially depress the blooming effect.