Molecular thermodynamics approach for polymer-polymer miscibility |
| |
Authors: | Suk Yung Oh |
| |
Affiliation: | Division of Chemical Engineering and Molecular Thermodynamics Lab.,1 Hanyang University, Seoul 133-791, Republic of Korea |
| |
Abstract: | We extended the previous lattice model for polymer solution systems to binary polymer blend systems. Based on Müller’s Monte-Carlo simulation data for symmetric system (r1 = 32 and r2 = 32), the energy of mixing is correlated as a function of temperature and composition using an empirical expression. In addition, we introduce new universal functions which reflect the characteristics of polymer-polymer miscibility behaviors. In associated blend systems, specific interactions between polymer segments are considered by using a secondary lattice. Using only one or two adjustable parameters, the proposed model satisfactory correlates the experimental data of real polymer blend systems with greater accuracy than those of other models. |
| |
Keywords: | Polymer-polymer miscibility Liquid-liquid equilibria Molecular thermodynamics Lattice model |
本文献已被 ScienceDirect 等数据库收录! |
|