✦ LIBER ✦

Thermodynamic Modeling of Polymer Solution Interface

✍ Scribed by Majid Ghiass; Alejandro D. Rey

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 294 KB
Volume: 18
Category: Article
ISSN: 1022-1344
DOI: 10.1002/mats.200800066

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A new method is presented to characterize the interfacial concentration field and interfacial tension between equilibrium polymer solution phases, using readily accessible equilibrium concentration data. The new method is tested and validated using experimental data from different polystyrene solutions and it consists of i) calculation of a universal expression for the concentration gradient coefficient based on the Cahn‐Hilliard model and the Wolf interfacial tension master equation, and ii) development of a highly accurate algebraic function (Kappa distribution) that, for a given equilibrium polymer concentration set, yields the essentially exact interfacial profile predicted by the classical gradient theory for polymer solutions.

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