CIESC Journal

• 化工学报 •    下一篇

链状流体的分子热力学模型(IV)高分子系统的液液平衡计算

叶汝强,刘洪来,胡英   

  1. 华东理工大学化学系!上海200237,华东理工大学化学系!上海200237,华东理工大学化学系!上海200237
  • 出版日期:1998-10-25 发布日期:1998-10-25

MOLECULAR THERMODYNAMIC MODEL FOR CHAIN-LIKE MOLECULE FLUIDS(IV)CALCULATION OF LIQUID-LIQUID EQUILIBRIUM OF POLYMER SYSTEMS

Ye Ruqiang;Liu Honglai;Hu Ying(Department of Chemistry,East China University of Science & Technology,Shanghai 200237)   

  • Online:1998-10-25 Published:1998-10-25

摘要: 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。

Abstract: The molecular thermodynamic model for chain-like molecule fluids presented in the previouswork is extended to the calculation of liquid-liquid equilibria of polymer systems.the liquid-liquidequilibria of polymer blends with upper-critical-solution-temperature(UCST)and lower-critical-solution-temperature(LCST)can be satisfactorily correlated by using two interaction parameters k_12 and Good agreements can also be obtained between calculated and experimental liquid-liquid equilibri-um of polymer solutions with LCST.

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