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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. 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}
}

Patent:

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