Materials for use as proton conducting membranes for fuel cells
- Blacksburg, VA
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.
- Research Organization:
- Virginia Poly/tech Institute
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC36-01GO11086
- Assignee:
- Virginia Tech Intellectual Properties, Inc. (Blacksburg, VA)
- Patent Number(s):
- 7,473,714
- Application Number:
- 11/119,353
- OSTI ID:
- 985858
- Country of Publication:
- United States
- Language:
- English
Novel sodium sulfonate-functionalized poly(ether ether ketone)s derived from 4,4′-thiodiphenol
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journal | March 2001 |
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