Inhomogeneous mesomorphic polymer systems

Y. Lansac and P. Maïssa

Physica A: Statistical Mechanics and its Applications, 1992, vol. 180, issue 1, 53-64

Abstract: An expression of the free energy of an inhomogeneous liquid crystalline polymer system is derived which includes five terms: the entropy of mixing, the conformational entropy for the chains, the isotropic interactions, the anisotropic interactions and the gradient terms describing the coupling between the various part of the system. The system is split in interacting homogeneous cells. A density functional expansion method is used. In each cell, the two-body molecular interactions are expanded in spherical harmonics. The chains are modelized as interacting elastic lines (bend curvature). A Maier-Saupe-type mean-field potential is considered. The theory generalized the equations of Van der Waals and Cahn-Hilliard-type to the case of mesomorphic mixtures described by two order parameters.

Date: 1992
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:180:y:1992:i:1:p:53-64

DOI: 10.1016/0378-4371(92)90108-3

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