Liquid-liquid equilibria of polydisperse polymer systems: applicability ofcontinuous thermodynamics

Continuous thermodynamics is a suitable tool for describing the thermodynam ic properties of solutions of polydisperse polymers. To represent Liquid-li quid equilibria of polydisperse polymer/solvent systems, a continuous distr ibution function to represent the composition of polydisperse polymers has to be considered. In this study, we calculate the molar mass distributions of both principal phases and conjugate phases, using the extended Flory-Hug gins model. The results for various polydisperse polymer systems are compar ed with experimental data. (C) 1999 EIsevier Science B.V. All rights reserv ed.