Hydrogen gas separations using a highly microporous polymer

Chad L. Staiger, Chris J. Cornelius, David R. Wheeler

Research output: Contribution to journalConference articlepeer-review


Membranes for hydrogen separation represent an attractive alternative to current methods to further lower the costs of hydrogen production. A highly contorted ladder polymer was prepared and evaluated for gas transport. The membrane permeabilities were consistent with those of a polymer containing large amount of free volume. Single gas permeabilities were measured for He, H2, CO2, O2, N2, and CH4 at 35°C using the time lag method. Spiro polymer 1 showed high permeability for each gas with H2 having the highest permeability of 1763 Barrers. While permeabilities were high, permselectivities were also good, particularly for O2/N2, H2/CH4, and CO2/CH4 separations.

Original languageEnglish (US)
Pages (from-to)891-892
Number of pages2
JournalACS Division of Fuel Chemistry, Preprints
Issue number2
StatePublished - Sep 2004
Externally publishedYes

ASJC Scopus subject areas

  • General Energy


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