Group contribution lattice fluid equation of state: Application to polymer+solvent systems

S. Mattedi, F. W. Tavares, M. Castier

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A group contribution equation of state recently proposed by the authors is used to calculate the activity of solvents in polymer+solvent solutions. The model is based on the generalized van der Waals theory and combines the Staverman-Guggenheim combinatorial term with an attractive lattice gas expression. The results show that the equation correlates the properties of pure solvents and polymers accurately. Furthermore, the equation satisfactorily represents the vapor-liquid equilibrium of solutions containing polymer and solvents of different polarities.

Original languageEnglish
Pages (from-to)313-319
Number of pages7
JournalBrazilian Journal of Chemical Engineering
Issue number3
Publication statusPublished - Sep 1998
Externally publishedYes


ASJC Scopus subject areas

  • Chemical Engineering(all)

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