Estimation of the Parameter for Poly(dimethylsiloxane) Solutions by the UNIFAC Group Contribution Method

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31 Scopus citations

Abstract

The UNIFAC group contribution method is used to calculate the reduced residual chemical potential for poly(dimethylsiloxane) solutions in alkanes, aromatic hydrocarbons, and dimethylsiloxane oligomers. The correct dependence of on polymer segment fraction is obtained for all solvents. In most cases the computed value of X differs by less than 10% from the experimental data. No adjustable parameters or solution data are required for the calculation. The UNIFAC method is shown to be a promising tool for systems with small “free volume” effects and unavailable experimental data.

Original languageEnglish
Pages (from-to)1468-1471
Number of pages4
JournalMacromolecules
Volume14
Issue number5
DOIs
StatePublished - 1 Jan 1981

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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