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将作者先前提出的链状流体混合物的分子热力学模型应用于高分子系统液液平衡的计算，对具有最高会溶温度（UCST)和最低会溶温度（LCST）的高分子共混物的液液平衡，采用两个相互作用参数可以取得令人满意的关联结果。对具有LCST的高分子溶液的液液平衡计算，需对高分子链长作适当调整。
The molecular thermodynamic model of the chain fluid mixture previously proposed by the author was applied to the calculation of the liquid-liquid equilibrium of the polymer system. The liquid-liquid mixture of the polymer blend having the highest solution temperature (UCST) and the lowest solution temperature (LCST) Balance, using two interaction parameters can be obtained satisfactory results. For liquid-liquid equilibrium calculation of polymer solution with LCST, the polymer chain length needs to be properly adjusted.