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Polymeric media comprising polybenzimidazoles N-substituted with organic-inorganic hybrid moiety

United States Patent

December 15, 2009
View the Complete Patent at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
A PBI compound includes imidazole nitrogens at least a portion of which are substituted with an organic-inorganic hybrid moiety may be included in a separatory medium. At least 85% of the imidazole nitrogens may be substituted. The organic-inorganic hybrid moiety may be an organosilane moiety, for example, (R)Me.sub.2SiCH.sub.2-- where R is selected from among methyl, phenyl, vinyl, and allyl. The separatory medium may exhibit an H.sub.2, Ar, N.sub.2, O.sub.2, CH.sub.3, or CO.sub.2 gas permeability greater than the gas permeability of a comparable separatory medium comprising the PBI compound without substitution. The separatory medium may further include an electronically conductive medium and/or an ionically conductive medium. The separatory medium may be used as a membrane (semi-permeable, permeable, and non-permeable), a barrier, an ion exchange media, a filter, a gas chromatography coating (such as stationary phase coating in affinity chromatography), etc.
Klaehn; John R. (Idaho Falls, ID), Peterson; Eric S. (Idaho Falls, ID), Wertsching; Alan K. (Idaho Falls, ID), Orme; Christopher J. (Shelley, ID), Luther; Thomas A. (Idaho Falls, ID), Jones; Michael G. (Pocatello, ID)
Battelle Energy Alliance, LLC (Idaho Falls, ID)
11/ 772,872
July 3, 2007
GOVERNMENT RIGHTS This invention was made with government support under Contract No. DE-AC07-99ID13727, and Contract No. DE-AC07-05ID14517 awarded by the United States Department of Energy. The government has certain rights in this invention.