The electro-optics of nematic liquid crystals stabilized by a polymer network

Samples of nematics stabilized by a polymer network, which are new composite materials, were prepared. A ZhK-1277 nematic composite and a bisphenyl-A-dimethacrylate monomer were used. Polymerization was conducted via UV radiation. The electro-optic properties, i.e., the dependence of transmittance a...

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Bibliographic Details
Published in:Polymer science. Series A, Chemistry, physics Chemistry, physics, 2013-03, Vol.55 (3), p.153-158
Main Authors: Kaznacheev, A. V., Smirnova, I. Yu, Sonin, A. S., Churochkina, N. A.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Electric potential
Electro-optics
Liquid crystals
Monomers
Nematic
Networks
Polymer Sciences
Structure and Properties
Transmittance
Voltage
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Summary:Samples of nematics stabilized by a polymer network, which are new composite materials, were prepared. A ZhK-1277 nematic composite and a bisphenyl-A-dimethacrylate monomer were used. Polymerization was conducted via UV radiation. The electro-optic properties, i.e., the dependence of transmittance and the turn-on and turn-off times on the electric voltage and layer thickness, of the resulting material and a pure nematic were studied. The experimental results are explained by the domain structure of the nematic in a polymer network, according to which the liquid crystal in an electro-optic cell is composed of oriented domains separated by thin partitions of the polymer. The size of the domain regions of the liquid crystal is 2 μm.
ISSN:0965-545X
1555-6107
DOI:10.1134/S0965545X13030024