文献类型：期刊文献

英文题名：Studying on the polymer -: Solvent interaction parameter

作者：Zhang, DF; Lü, RD; Hei, EC; Liu, GJ

机构：[1]E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

年份：1999

卷号：57

期号：6

起止页码：546

外文期刊名：ACTA CHIMICA SINICA

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000081113700002)】；

语种：英文

外文关键词：internal pressure; Gibbs free energy model; polymer solution; polymer;solvent interaction parameter

摘要：Based on the generalized Gibbs free energy model of the mixing of liquids established by this work, an equation which can satisfactorily describe: the variations of polymer - solvent interaction parameter with the concentration and temperature in the polymer solutions is derived. It is composed of two parts, namely the contributions of enthalpy and entropy, and is the same as Koningsveld Kleintijens' relation formally. But its entropy contribution chi(S) is a complex function of concentration, rather than an arbitrary constant as proposed by Koningsveld. Some characters of the polymer solution can be well explained by this equation.