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Title: 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:
 [1];  [1]
  1. Blacksburg, VA
Publication Date:
Research Org.:
Virginia Poly/tech Institute
Sponsoring Org.:
USDOE
OSTI Identifier:
985858
Patent Number(s):
7,473,714
Application Number:
11/119,353
Assignee:
Virginia Tech Intellectual Properties, Inc. (Blacksburg, VA)
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. 2009. "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 = {},
url = {https://www.osti.gov/biblio/985858}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {1}
}

Works referenced in this record: