Materials for use as proton conducting membranes for fuel cells
Abstract
A family of polymers having pendent sulfonate moieties connected to polymeric main chain phenyl groups are described. These polymers are prepared by the steps of polymerization (using a monomer with a phenyl with an alkoxy substitution), deportation by converting the alkoxy to a hydroxyl, and functionalization of the polymer with a pendant sulfonate group. As an example, sulfonated poly(arylene ether sulfone) copolymers with pendent sulfonic acid groups are synthesized by the direct copolymerization of methoxy-containing poly(arylene ether sulfone)s, then converting the methoxy groups to the reactive hydroxyl form, and finally functionalizing the hydroxyl form with proton-conducting sites through nucleophilic substitution. The family of polymers may have application in proton exchange membranes and in other applications.
- Inventors:
-
- Blacksburg, VA
- Issue Date:
- Research Org.:
- Virginia Poly/tech Institute
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 985858
- Patent Number(s):
- 7473714
- Application Number:
- 11/119,353
- Assignee:
- Virginia Tech Intellectual Properties, Inc. (Blacksburg, VA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP
- DOE Contract Number:
- FC36-01GO11086
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Einsla, Brian R, and McGrath, James E. Materials for use as proton conducting membranes for fuel cells. United States: N. p., 2009.
Web.
Einsla, Brian R, & McGrath, James E. Materials for use as proton conducting membranes for fuel cells. United States.
Einsla, Brian R, and McGrath, James E. Tue .
"Materials for use as proton conducting membranes for fuel cells". United States. https://www.osti.gov/servlets/purl/985858.
@article{osti_985858,
title = {Materials for use as proton conducting membranes for fuel cells},
author = {Einsla, Brian R and McGrath, James E},
abstractNote = {A family of polymers having pendent sulfonate moieties connected to polymeric main chain phenyl groups are described. These polymers are prepared by the steps of polymerization (using a monomer with a phenyl with an alkoxy substitution), deportation by converting the alkoxy to a hydroxyl, and functionalization of the polymer with a pendant sulfonate group. As an example, sulfonated poly(arylene ether sulfone) copolymers with pendent sulfonic acid groups are synthesized by the direct copolymerization of methoxy-containing poly(arylene ether sulfone)s, then converting the methoxy groups to the reactive hydroxyl form, and finally functionalizing the hydroxyl form with proton-conducting sites through nucleophilic substitution. The family of polymers may have application in proton exchange membranes and in other applications.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {1}
}
Works referenced in this record:
Novel sodium sulfonate-functionalized poly(ether ether ketone)s derived from 4,4′-thiodiphenol
journal, March 2001
- Liu, Shengzhou; Chen, Tianlu
- Polymer, Vol. 42, Issue 7