Waves at surfactant-laden liquid-liquid crystal interface

LISHCHUK, S. V. (2007). Waves at surfactant-laden liquid-liquid crystal interface. Physical Review E (PRE), 76 (1), 011711.

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Abstract

A theoretical study is presented of surface waves at a monomolecular surfactant film between an isotropic liquid and a nematic liquid crystal for the case when the surfactant film is in the isotropic two-dimensional fluid phase and induces homeotropic normal to the interface orientation of the nematic director. The dispersion relation for the surface waves is obtained, and different surface modes are analyzed with account being taken of the anchoring induced by the surfactant layer, the curvature energy of the interface, and the anisotropy of the viscoelastic coefficients. The dispersion laws for capillary and dilatational surface modes retain structure similar to that in isotropic systems, but involve anisotropic viscosity coefficients. Additional modes are related to relaxation of the nematic director field due to anchoring at the interface. The results can be used to determine different properties of nematic-surfactant-isotropic interfaces from experimental data on surface light scattering.

Item Type:	Article
Research Institute, Centre or Group - Does NOT include content added after October 2018:	Materials and Engineering Research Institute > Structural Materials and Integrity Research Centre > Centre for Corrosion Technology
Identification Number:	https://doi.org/10.1103/PhysRevE.76.011711
Page Range:	011711
Depositing User:	Sergey Lishchuk
Date Deposited:	15 Mar 2010 17:08
Last Modified:	18 Mar 2021 05:23
URI:	https://shura.shu.ac.uk/id/eprint/1215

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