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Title: Trifluorostyrene containing compounds, and their use in polymer electrolyte membranes

Abstract

A fluorinated ion exchange polymer is prepared by grafting a monomer onto a base polymer, wherein the grafting monomer is selected from the group consisting of structure 1a, 1b and mixture thereof; ##STR00001## wherein Y is selected from the group consisting of --R.sub.FSO.sub.2F, --R.sub.FSO.sub.3M, --R.sub.SO.sub.2NH.sub.2 and --R.sub.FSO.sub.2N(M)SO.sub.2R.sup.2.sub.F, where in M is hydrogen, an alkali cation or ammonium; and R.sub.F and R.sup.2.sub.F are perfluorinated or partially fluorinated, and may optionally include ether oxygens; and n is between 1 and 2 for 1a, or n is between 1 and 3 for 1b. These ion exchange polymers are useful is preparing catalyst coated membranes and membrane electrode assemblies for fuel cells.

Inventors:
 [1];  [2];  [2]
  1. Kingston, CA
  2. Hockessin, DE
Issue Date:
Research Org.:
E.I. du Pont de Nemours and Company
Sponsoring Org.:
USDOE
OSTI Identifier:
1012605
Patent Number(s):
7563532
Application Number:
10/570,024
Assignee:
E.I. du Pont de Nemours and Company (Wilmington, DE)
Patent Classifications (CPCs):
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
DOE Contract Number:  
AC36-99GO10337
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Choudhury, Biswajit, Roelofs, Mark Gerrit, and Yang, Zhen-Yu. Trifluorostyrene containing compounds, and their use in polymer electrolyte membranes. United States: N. p., 2009. Web.
Choudhury, Biswajit, Roelofs, Mark Gerrit, & Yang, Zhen-Yu. Trifluorostyrene containing compounds, and their use in polymer electrolyte membranes. United States.
Choudhury, Biswajit, Roelofs, Mark Gerrit, and Yang, Zhen-Yu. Tue . "Trifluorostyrene containing compounds, and their use in polymer electrolyte membranes". United States. https://www.osti.gov/servlets/purl/1012605.
@article{osti_1012605,
title = {Trifluorostyrene containing compounds, and their use in polymer electrolyte membranes},
author = {Choudhury, Biswajit and Roelofs, Mark Gerrit and Yang, Zhen-Yu},
abstractNote = {A fluorinated ion exchange polymer is prepared by grafting a monomer onto a base polymer, wherein the grafting monomer is selected from the group consisting of structure 1a, 1b and mixture thereof; ##STR00001## wherein Y is selected from the group consisting of --R.sub.FSO.sub.2F, --R.sub.FSO.sub.3M, --R.sub.SO.sub.2NH.sub.2 and --R.sub.FSO.sub.2N(M)SO.sub.2R.sup.2.sub.F, where in M is hydrogen, an alkali cation or ammonium; and R.sub.F and R.sup.2.sub.F are perfluorinated or partially fluorinated, and may optionally include ether oxygens; and n is between 1 and 2 for 1a, or n is between 1 and 3 for 1b. These ion exchange polymers are useful is preparing catalyst coated membranes and membrane electrode assemblies for fuel cells.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {7}
}

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