Quasi-chemical approximation for nonrandomness in the hole theory of polymeric fluids. 1. Equation of state behavior of pure components

E. Nies, Hankun Xie

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Abstract

The effect of nonrandomness is introduced in the Holey Huggins hole theory (a modified version of the Simha-Somcynsky theory) based on the quasichem. approxn. of Guggenheim. The resulting nonrandomness is dependent on the energetic interactions and is detd. by the so-called free vol. contributions typical of cell and hole theories. The theory offers an accurate description of exptl. equation of state data of polymers and small mols. A comparison with the random mixing analog of the present theory shows that the introduction of the quasichem. approxn. improves the accuracy of the description of exptl. data. [on SciFinder (R)]
Original languageEnglish
Pages (from-to)1683-1688
JournalMacromolecules
Volume26
Issue number7
DOIs
Publication statusPublished - 1993

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