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Dielectric dispersion measurements in a nematic liquid crystal mixture

✍ Scribed by L. Bata; G. Molnár

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
439 KB
Volume
33
Category
Article
ISSN
0009-2614

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✦ Synopsis

Two addition4 low frequency dispersions of l 11 have been observed in a mixture of four nematic phenyl benzoztes. The corresponding relasation times, i.e., 76 = 2.4 X 13-' s and ,, 1' = 4 3 X lO+ s at 0.93 Tc are ascribed to the hindered rota-.

tions of components around the short molecular axes.

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The effect of nonionic surfactant (H(OCH2-CH2)8-OC6H4-C9H19) on the stability of liquid crystal-in-water dispersions stabilized by copolymers of acrylamide with hydrophobic monomers have been studied. It was observed that the addition of surfactant increases the stability of liquid crystal (LC) disp