Time-dependent permeation of carbon dioxide through a polyimide membrane above the plasticization pressure

Matthias Wessling, I. Huisman, Anthonie van den Boomgaard, C.A. Smolders, C.A. Smolders

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The time-dependent permeation behavior of a glassy polyimide is studied above and below the plasticization pressure with carbon dioxide as the permeating gas. The work particularly focuses on the quantification of the slow increase in permeability at feed pressures above the plasticization pressure. Significant differences in permeation behavior were found for membranes with and without permeation history. Introducing the quantity conditioning time allows one to compare the results obtained for membranes with different permeation history. The concept of conditioning time furthermore allows one to quantify the aging of a membrane plasticized during previous permeation.
Original languageUndefined
Pages (from-to)1959-1966
Number of pages8
JournalJournal of applied polymer science
Issue number58
Publication statusPublished - 1995


  • METIS-106919
  • IR-12738

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