Ultra-microporous triptycene-based polyimide membranes for high-performance gas separation

Bader Ghanem, Raja Swaidan, Eric Litwiller, Ingo Pinnau

Research output: Contribution to journalArticlepeer-review

337 Scopus citations


A highly permeable and highly selective polyimide of intrinsic microporosity is prepared using a 9,10-diisopropyl-triptycene contortion center. The three-dimensionality and shape-persistence of triptycene afford exceptional sieving-based gas separation performance transcending the latest permeability/selectivity trade-offs for industrial gas separations involving oxygen and hydrogen. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Original languageEnglish (US)
Pages (from-to)3688-3692
Number of pages5
JournalAdvanced Materials
Issue number22
StatePublished - Mar 11 2014

ASJC Scopus subject areas

  • Mechanics of Materials
  • General Materials Science
  • Mechanical Engineering


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