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

本研究的目的是利用立方状态方程和基团贡献法相结合的修正的SRK基团贡献法，建立聚合物溶液物性的预测程序。该模型的优点是原始SRK参数可以直接用于溶剂，ASOG参数可以用于聚合物溶液。第一年，作者提出了改进的SRK基团贡献法预测相平衡的方法。测定了10种聚合物的立方状态方程参数a*、b*和c*，并用ASOG-FV组合方法预测了聚合物溶液的汽液平衡。在这一年中，作者已经测定了52种聚合物的物态方程的特定参数(用于制备流体相平衡)。对于特定的参数，作者可以提出基于分组求和的预测方法。然后利用所提出的模型对聚合物溶液的液液平衡进行预测。

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