Dielectric Properties of Two Polar Nematic Liquid Crystals
- 1 April 1991
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 30 (4R)
- https://doi.org/10.1143/jjap.30.711
Abstract
We report in this paper the dielectric properties of two polar nematic liquid crystals p-methoxybenzylidene-p'cyanoaniline (MBCA) and p-cyanobenzylidene-p'methoxyaniline (CBMA). The effect induced by dc and ac electric fields as well as magnetic field resulting to a deformation of the nematic director was studied at 10 kHz and 1 kHz. The dielectric anisotropies, splay elastic constants and diamagnetic anisotropies as well as the correlation factors are investigated by capacitance measurements. These results are discussed in terms of molecular properties and molecular degree association.Keywords
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