Development of Modified SRK Group Contribution Method for Predicting High-Pressure Physical Properties for Polymer Solutions

本研究工作的目的是发展预测程序的聚合物溶液的物理性质，使用改进的SRK基团贡献法得到的立方状态方程和基团贡献法相结合。该模型的优点是SRK参数可直接用于溶剂，ASOG参数可用于聚合物溶液。测定了10种聚合物的立方型状态方程参数a ~*、B ~* 和c ~*，并用ASOG-FV方法预测了聚合物溶液的汽液平衡。在这一年中，作者确定了52种聚合物的EOS特定参数（为流体相平衡做准备）。对于特定的参数，作者可以提出基于分组求和的预测方法。然后用该模型预测了聚合物溶液的液液平衡

The objective of this research work is to develop the predictive procedure for physical properties of polymer solutions using the modified SRK group contribution method obtained by combining cubic equation of state and group contribution method. The merit of this model is that the original SRK parameters can be directly used for solvents and ASOG parameters can be used for polymer solutions.At first year the author proposed the predictive method for phase equilibria using modified SRK group contribution method. The cubic EOS parameters a*, b* and c* has been determined for 10 polymers, and the VLE for polymer solutions have been predicted using the combined ASOG-FV method (in preparation to Fluid Phase Equilibria). In this year the author has determined EOS specific parameters for 52 polymers (in preparation to Fluid Phase Equilibria). The author may be able to propose the predictive method based on the group summation for specific parameters. Then the liquid-liquid equilibria for polymer solutions will be predicted using the proposed model