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Title: Polybenzimidazole compounds

Abstract

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.

Inventors:
 [1];  [1];  [2];  [3];  [1];  [1];  [1]
  1. Idaho Falls, ID
  2. Shelley, ID
  3. Chubbuck, ID
Publication Date:
Research Org.:
Idaho National Engineering and Environmental Laboratory (INEEL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1032876
Patent Number(s):
8,063,174
Application Number:
11/933,604
Assignee:
Battelle Energy Alliance, LLC (Idaho Falls, ID)
DOE Contract Number:  
AC07-99ID13727; AC07-051D14517
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Klaehn, John R, Peterson, Eric S, Orme, Christopher J, Jones, Michael G, Wertsching, Alan K, Luther, Thomas A, and Trowbridge, Tammy L. Polybenzimidazole compounds. United States: N. p., 2011. Web.
Klaehn, John R, Peterson, Eric S, Orme, Christopher J, Jones, Michael G, Wertsching, Alan K, Luther, Thomas A, & Trowbridge, Tammy L. Polybenzimidazole compounds. United States.
Klaehn, John R, Peterson, Eric S, Orme, Christopher J, Jones, Michael G, Wertsching, Alan K, Luther, Thomas A, and Trowbridge, Tammy L. Tue . "Polybenzimidazole compounds". United States. https://www.osti.gov/servlets/purl/1032876.
@article{osti_1032876,
title = {Polybenzimidazole compounds},
author = {Klaehn, John R and Peterson, Eric S and Orme, Christopher J and Jones, Michael G and Wertsching, Alan K and Luther, Thomas A and Trowbridge, Tammy L},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {11}
}

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