Gas transport properties of intrinsically microporous polymers

Ingo Pinnau*, Sylvie Thomas, Michael D. Guiver, Naiying Du, Jingshe Song

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


This presentation will compare the gas transport properties two classes of polymers of intrinsic microporosity (PIM) for membrane separations. This study includes long-term gas permeability data of PIM-based materials. We studied the pure-gas permeation properties of PIM for over one year and the polymer's properties are exceptional. The initial oxygen permeability dropped from 1,535 Barrer to 700 Barrer after one year of operation. On the other hand, the initial oxygen/nitrogen selectivity increased from 3.7 to 5.2. These are unmatched permeation properties for air separation, which lie far beyond the typical Robeson permeability/selectivity trade-off. In addition, PIM has very high organic-vapor/permanent-gas selectivity and permeability. For example, PIM-1 has a mixed-gas n-butane/hydrogen selectivity of 30-50 depending on the feed composition.

Original languageEnglish (US)
Title of host publicationAmerican Chemical Society - 237th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers
StatePublished - 2009
Externally publishedYes
Event237th National Meeting and Exposition of the American Chemical Society, ACS 2009 - Salt Lake City, UT, United States
Duration: Mar 22 2009Mar 26 2009


Other237th National Meeting and Exposition of the American Chemical Society, ACS 2009
Country/TerritoryUnited States
CitySalt Lake City, UT

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)


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