Crystal-liquid crystal binary phase diagrams |
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Authors: | Dayal Pratyush Matkar Rushikesh A Kyu Thein |
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Institution: | Department of Polymer Engineering, University of Akron, Akron, Ohio 44325-0301, USA. |
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Abstract: | We propose a new theoretical scheme for the binary phase diagrams of crystal-liquid crystal mixtures by a combination of a phase field model of solidification, the Flory-Huggins theory for liquid-liquid mixing and Maier-Saupe-McMillan (FH-MSM) model for nematic and smectic liquid crystal orderings. The phase field theory describes the crystal phase transition of anisotropic organic crystal and/or side chain liquid crystalline polymer crystals while the FH-MSM model explains isotropic, nematic and smectic-A phase transitions. Self-consistent calculations reveal several possible phase diagram topologies of the binary crystal-liquid crystal mixtures. The calculated phase diagrams were found to accord well to the reported experimental results. |
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