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Title: Polybenzimidazole compounds, polymeric media, and methods of post-polymerization modifications

Abstract

A PBI compound includes imidazole nitrogens at least a portion of which are substituted with an organic-inorganic hybrid moiety. 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 PBI compound may exhibit similar thermal properties in comparison to the unsubstituted PBI. The PBI compound may exhibit a solubility in an organic solvent greater than the solubility of the unsubstituted PBI. 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 occur at about room temperature and/or at about atmospheric pressure. Substituting may use at least 5 equivalents in relation to the imidazole nitrogens to be substituted or, preferably, about 15.

Inventors:
 [1];  [1];  [1];  [2];  [1];  [3]
  1. Idaho Falls, ID
  2. Shelley, ID
  3. Pocatello, ID
Publication Date:
Research Org.:
BECHTEL BWXT IDAHO LLC
Sponsoring Org.:
USDOE
OSTI Identifier:
913425
Patent Number(s):
7,259,230
Application Number:
10/862,921
Assignee:
Battelle Energy Alliance, LLC (Idaho Falls, ID)
DOE Contract Number:  
AC07-99ID13727
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, Wertsching, Alan K, Orme, Christopher J, Luther, Thomas A, and Jones, Michael G. Polybenzimidazole compounds, polymeric media, and methods of post-polymerization modifications. United States: N. p., 2007. Web.
Klaehn, John R, Peterson, Eric S, Wertsching, Alan K, Orme, Christopher J, Luther, Thomas A, & Jones, Michael G. Polybenzimidazole compounds, polymeric media, and methods of post-polymerization modifications. United States.
Klaehn, John R, Peterson, Eric S, Wertsching, Alan K, Orme, Christopher J, Luther, Thomas A, and Jones, Michael G. Tue . "Polybenzimidazole compounds, polymeric media, and methods of post-polymerization modifications". United States. https://www.osti.gov/servlets/purl/913425.
@article{osti_913425,
title = {Polybenzimidazole compounds, polymeric media, and methods of post-polymerization modifications},
author = {Klaehn, John R and Peterson, Eric S and Wertsching, Alan K and Orme, Christopher J and Luther, Thomas A and Jones, Michael G},
abstractNote = {A PBI compound includes imidazole nitrogens at least a portion of which are substituted with an organic-inorganic hybrid moiety. 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 PBI compound may exhibit similar thermal properties in comparison to the unsubstituted PBI. The PBI compound may exhibit a solubility in an organic solvent greater than the solubility of the unsubstituted PBI. 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 occur at about room temperature and/or at about atmospheric pressure. Substituting may use at least 5 equivalents in relation to the imidazole nitrogens to be substituted or, preferably, about 15.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {8}
}

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