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Thermodynamics of gas solubilities in molten polymers

✍ Scribed by D. D. Liu; J. M. Prausnitz

Publisher
John Wiley and Sons
Year
1979
Tongue
English
Weight
433 KB
Volume
24
Category
Article
ISSN
0021-8995

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✦ Synopsis

Abstract

Perturbed‐hard‐chain theory is extended to mixtures of polymers and volatile fluids, including supercritical gases. This extension is used to derive an expression for Henry's constant for a solute in a molten polymer. Theoretical calculations and data reduction are reported for a variety of solutes in polyethylene, polyisobutylene, and poly(dimethyl siloxane) in the temperature region 25–300Β°C. Calculated Henry's constants and their temperature dependence are generally in good agreement with the limited experimental data now available.

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