Evaluation of SAFT and PC-SAFT models for the description of homo- and co-polymer solution phase equilibria

Theodora Spyriouni, Ioannis G. Economou

Research output: Contribution to journalArticle

21 Citations (Scopus)


Statistical associating fluid theory (SAFT) and perturbed-chain SAFT (PC-SAFT) are used to model the phase behavior of polymer-solvent mixtures over a wide temperature and pressure range. Homopolymers (polyolefins) as well as co-polymers are examined. Calculations were performed using various recently proposed robust algorithms for polydisperse polymers. Various polymer properties that affect substantially the phase behavior, such as molecular weight, polydispersity, and macromolecular architecture, were considered. For most of the systems examined, PC-SAFT correlation is marginally closer to experimental data than SAFT. Nevertheless, there are a number of mixtures where SAFT is the preferred model.

Original languageEnglish
Pages (from-to)10772-10781
Number of pages10
Issue number24
Publication statusPublished - 21 Nov 2005



  • Co-polymers
  • Polymer thermodynamics
  • SAFT

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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