Determination of the anisotropic potential at the nematic liquid crystal-to-wall interface
1983; American Institute of Physics; Volume: 43; Issue: 1 Linguagem: Inglês
10.1063/1.94121
ISSN1520-8842
Autores Tópico(s)Surfactants and Colloidal Systems
ResumoThe integrated birefringence of a surfactant (C16H33NH2)-aligned methoxybenzylidene butylaniline cell as a function of applied magnetic field (up to 100 kG) has been measured. The Oseen and Frank elastic continuum theory and a generalized torque balance equation at the interface have been utilized for the calculation to fit the measured data. A very good fit to the data was obtained using an anisotropic liquid crystal-to-wall interfacial potential of the form C cos2 θ+C4 cos4 θ for the calculation. It was found that C4/C=−0.38.
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