Polybenzimidazole compounds

Klaehn, John R; Peterson, Eric S; Orme, Christopher J; Jones, Michael G; Wertsching, Alan K; Luther, Thomas A; Trowbridge, Tammy L

Polybenzimidazole compounds

Patent · Mon Nov 21 23:00:00 EST 2011

OSTI ID:1032876

Klaehn, John R ^[1]; Peterson, Eric S ^[1]; Orme, Christopher J ^[2]; Jones, Michael G ^[3]; Wertsching, Alan K ^[1]; Luther, Thomas A ^[1]; Trowbridge, Tammy L ^[1]

Idaho Falls, ID
Shelley, ID
Chubbuck, ID

A PBI compound includes imidazole nitrogens at least a portion of which are substituted with a moiety containing a carbonyl group, the substituted imidazole nitrogens being bonded to carbon of the carbonyl group. At least 85% of the nitrogens may be substituted. The carbonyl-containing moiety may include RCO--, where R is alkoxy or haloalkyl. The PBI compound may exhibit a first temperature marking an onset of weight loss corresponding to reversion of the substituted PBI that is less than a second temperature marking an onset of decomposition of an otherwise identical PBI compound without the substituted moiety. The PBI compound may be included in separatory media. A substituted PBI synthesis method may include providing a parent PBI in a less than 5 wt % solvent solution. Substituting may use more than 5 equivalents in relation to the imidazole nitrogens to be substituted.

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Research Organization:: Idaho National Engineering and Environmental Laboratory (INEEL), Idaho Falls, ID (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC07-99ID13727

Assignee:: Battelle Energy Alliance, LLC (Idaho Falls, ID)

Patent Number(s):: 8,063,174

Application Number:: 11/933,604

OSTI ID:: 1032876

Country of Publication:: United States

Language:: English

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