Fickian diffusion in glassy polymer‐solvent systems

J. S. Vrentas, C. M. Vrentas

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A free‐volume theory is developed for the analysis of Fickian diffusion processes in glassy polymers. Equations are presented for the prediction of mutual diffusion coefficients in concentrated glassy polymer‐penetrant systems. The concentration dependence of the mutual diffusion coefficient is dependent on how much free volume the solvent contributes to the system and on how the addition of solvent affects the densification of the polymer matrix. © 1992 John Wiley & Sons, Inc.

Original languageEnglish (US)
Pages (from-to)1005-1011
Number of pages7
JournalJournal of Polymer Science Part B: Polymer Physics
Issue number9
StatePublished - Aug 1992

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Materials Chemistry


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