1. Molecular Theory on Liquid Crystalline Mixtures.
- Author
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Matsuda, Hiromitsu and Kimura, Hatsuo
- Subjects
- *
LIQUID crystals , *MOLECULAR theory , *PHASE transitions , *MOLECULAR models , *CRYSTALLINE interfaces , *INTERFACES (Physical sciences) - Abstract
The nematic-isotropic phase transitions in mixtures of rod-like and disc-like molecules are studied by a mean field theory. We consider both attraction and hard-core repulsion for the model molecules, thermotropic phase transitions are found from the isotropic to one of the two types of uniaxially symmetric nematic phases: optically positive N+ and negative N-. On the other hand, biaxially symmetric nematic phase is shown to be always less stable than the uniaxial phase. We predict that re-entrant phase transition occur for the lyotropic system. [ABSTRACT FROM AUTHOR]
- Published
- 2004
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