Prediction of thermodynamic properties of polymer solutions using the UNIFAC group-contribution method

G. J. Price, A. J. Ashworth

Research output: Contribution to journalArticle


The UNIFAC group-contribution method has been applied to solutions of polydimethylsiloxane in a number of solvents. In the region of high polymer concentration, the predicted Flory-Huggins interaction parameters are not in good agreement with experimental values and the predicted variation with molecular weight is the opposite to that measured. However, it has been shown that, if a single experimental result is available, the UNIFAC predictions can be improved to within a few per cent.

Original languageEnglish
Pages (from-to)2105-2109
Number of pages5
Issue number12
Publication statusPublished - 1 Jan 1987


  • interaction parameter
  • molecular weight
  • polydimethylsiloxane

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

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