Publication
The Journal of Chemical Physics
Paper

Elastic constants of the nematic liquid crystalline phase of p-methoxybenzylidene-p-n-butylaniline (MBBA)

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Abstract

The bend and splay elastic constants of MBBA were measured over its nematic temperature range. The ratio of the two constants is 1.25±0.05. The temperature dependence of the elastic constants is found to be adequately described by the simple mean-field models. A comparison is made between viscosity coefficients obtained from the elastic constants and light scattering spectra and from classical viscosity measurements. A method proposed for the measurement of twist elastic constants is evaluated and an upper limit of this constant of MBBA as a function of temperature is reported.

Date

03 Sep 2003

Publication

The Journal of Chemical Physics

Authors

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