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Phase relationships in a ternary solution composed of a solvent and two monodisperse homologous polymers

✍ Scribed by Fujita, Hiroshi ;Teramoto, Akio

Publisher
Wiley (John Wiley & Sons)
Year
1982
Tongue
English
Weight
299 KB
Volume
20
Category
Article
ISSN
0098-1273

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✦ Synopsis

Abstract

Exact expressions are derived for the spinodal, critical conditions, and separation factor of a ternary solution consisting of a pure solvent and two monodisperse homologous polymers in which the Flory‐Huggins interaction parameter Ο‡ depends separately on the concentrations of the polymer components. The results allow one to see the difference from previous expressions obtained with Ο‡ depending on the total concentration of the polymer, and are expected to be useful for experimental determination of the Gibbs free energy of ternary solutions.

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## Abstract The intensity of light scattered from dilute solutions of mixtures of two nonidentical polymers in a single solvent was measured. The parameter A~24~ characterising the thermo‐dynamic interaction of two nonidentical polymer molecules in solution was calculated for several systems polyme