共聚硬球链流体及其混合物的状态方程

Equation of State for the Mixtures of Heteronuclear Hard-Sphere Chain Fluids

将前文导得的均聚硬球链流体的分子热力学模型推广应用到共聚硬球链及其混合流体。用本模型预测的纯共聚硬球链流体和均聚硬球链流体混合物的压缩因子与计算机模拟结果比较，两者能很好地相互吻合。为进一步构筑实际高分子溶液和共混物的分子热力学模型打下了良好的基础。

Previous molecular thermodynamic model based on the statistical theory of chemical association for pure homonuclear hard-sphere chain fluids has been extended to the mixture of heteronuclear hard-sphere chain fluids. Good agreement can be obtained by this model without any adjustable parameters compared with computer simulation results of the comprcssibility factors of heteronuclear hard-sphere chain fluids and their mixtures. The generalization presented here can be used to the mixtures of heteronuclear hard-sphere chain molecules differing among themselves in both the chain length and diameter of sphere segments. The model can be used as the basis of the molecular thermodynamic model for real polymer solution,polymer blend and copolymer systems.