Dayal Pratyush, Matkar Rushikesh A, Kyu Thein
Department of Polymer Engineering, University of Akron, Akron, Ohio 44325-0301, USA.
J Chem Phys. 2006 Jun 14;124(22):224902. doi: 10.1063/1.2200688.
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.
我们通过结合凝固相场模型、液-液混合的弗洛里-哈金斯理论以及向列相和近晶相液晶有序化的迈尔-绍佩-麦克米兰（FH-MSM）模型，提出了一种用于晶体-液晶混合物二元相图的新理论方案。相场理论描述了各向异性有机晶体和/或侧链液晶聚合物晶体的晶相转变，而FH-MSM模型解释了各向同性、向列相和近晶-A相转变。自洽计算揭示了二元晶体-液晶混合物几种可能的相图拓扑结构。计算得到的相图与报道的实验结果吻合良好。
