Dependence of facilitated olefin transport on the thickness of silver polymer electrolyte membranes

Jong Hak Kim, Su Mi Park, Jongok Won, Yong Soo Kang

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Facilitated olefin transport membranes consisting of AgBF4 dissolved in poly(2-ethyl-2-oxazoline) (POZ) were prepared for use in propylene/propane separation. It was found that facilitated propylene transport through these membranes depends on their thickness. As the membrane thickness increases, the propylene permeability increases whereas the propane permeability remains almost constant, resulting in an increase in the membranes' selectivity of propylene over propane. The concentration fluctuation model for facilitated transport in the solid state predicts a dependence of facilitated transport on thickness. In this note, we compare the dependence of the propylene permeability of POZ/AgBF4 membranes on their thickness with that predicted by the concentration fluctuation model.

Original languageEnglish
Pages (from-to)209-212
Number of pages4
JournalJournal of Membrane Science
Issue number1-2
Publication statusPublished - 2004 Jun 15

Bibliographical note

Funding Information:
The authors gratefully acknowledge the financial support from the Ministry of Science and Technology of Korea through the Creative Research Initiatives Program. J. Won and S.M. Park also acknowledge the financial support provided by the KOSEF (R0420020000000302002).

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Filtration and Separation


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