半刚性链分子的统计热力学（Ⅰ）

摘要: 用柔性连接点联系的刚棒模型代表半刚性链分子,对其进行统计热力学分析。半刚性链分子的混合自由能是克分子分数、溶质分子的长径比、链分子的有序度、刚柔性以及温度的函数。溶液体系具有极小浓度V_2~*。当V_2~*V_2~*是获得稳定的各向异性相的必要条件。V_2~*是链分子的长径比、刚柔性及温度的函数。V_2是溶液浓度。

Abstract: A free energy of mixing for a system of semi--rigid chain with partial order is de-rived through the use of a modified rigid--rod model. A general expression of the min-imum concentration V_2~? is obtained by minimizing the free energy of mixing. ForV2