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Title: Stable trifluorostyrene containing compounds grafted to base polymers, and their use as polymer electrolyte membranes

Abstract

A fluorinated ion exchange polymer prepared by grafting at least one grafting monomer on to at least one base polymer, wherein the grafting monomer comprises structure 1a or 1b: wherein Z comprises S, SO.sub.2, or POR wherein R comprises a linear or branched perfluoroalkyl group of 1 to 14 carbon atoms optionally containing oxygen or chlorine, an alkyl group of 1 to 8 carbon atoms, an aryl group of 6 to 12 carbon atoms or a substituted aryl group of 6 to 12 carbon atoms; RF comprises a linear or branched perfluoroalkene group of 1 to 20 carbon atoms, optionally containing oxygen or chlorine; Q is chosen from F, --OM, NH.sub.2, --N(M)SO.sub.2R.sup.2.sub.F, and C(M)(SO.sub.2R.sup.2.sub.F).sub.2, wherein M comprises H, an alkali cation, or ammonium; R.sup.2.sub.F groups comprises alkyl of 1 to 14 carbon atoms which may optionally include ether oxygens or aryl of 6 to 12 carbon atoms where the alkyl or aryl groups may be perfluorinated or partially fluorinated; and n is 1 or 2 for 1a, and n is 1, 2, or 3 for 1b. These ion exchange polymers are useful in preparing catalyst coated membranes and membrane electrode assemblies used in fuel cells.

Inventors:
 [1];  [1]
  1. (Hockessin, DE)
Issue Date:
Research Org.:
E.I. du Pont de Nemours and Company (Wilmington, DE)
Sponsoring Org.:
USDOE
OSTI Identifier:
1014934
Patent Number(s):
7,829,603
Application Number:
US Patent Application 11/547,239
Assignee:
E.I. du Pont de Nemours and Company (Wilmington, DE) ALO
DOE Contract Number:  
FC04-02AL67606
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Yang, Zhen-Yu, and Roelofs, Mark Gerrit. Stable trifluorostyrene containing compounds grafted to base polymers, and their use as polymer electrolyte membranes. United States: N. p., 2010. Web.
Yang, Zhen-Yu, & Roelofs, Mark Gerrit. Stable trifluorostyrene containing compounds grafted to base polymers, and their use as polymer electrolyte membranes. United States.
Yang, Zhen-Yu, and Roelofs, Mark Gerrit. Tue . "Stable trifluorostyrene containing compounds grafted to base polymers, and their use as polymer electrolyte membranes". United States. https://www.osti.gov/servlets/purl/1014934.
@article{osti_1014934,
title = {Stable trifluorostyrene containing compounds grafted to base polymers, and their use as polymer electrolyte membranes},
author = {Yang, Zhen-Yu and Roelofs, Mark Gerrit},
abstractNote = {A fluorinated ion exchange polymer prepared by grafting at least one grafting monomer on to at least one base polymer, wherein the grafting monomer comprises structure 1a or 1b: wherein Z comprises S, SO.sub.2, or POR wherein R comprises a linear or branched perfluoroalkyl group of 1 to 14 carbon atoms optionally containing oxygen or chlorine, an alkyl group of 1 to 8 carbon atoms, an aryl group of 6 to 12 carbon atoms or a substituted aryl group of 6 to 12 carbon atoms; RF comprises a linear or branched perfluoroalkene group of 1 to 20 carbon atoms, optionally containing oxygen or chlorine; Q is chosen from F, --OM, NH.sub.2, --N(M)SO.sub.2R.sup.2.sub.F, and C(M)(SO.sub.2R.sup.2.sub.F).sub.2, wherein M comprises H, an alkali cation, or ammonium; R.sup.2.sub.F groups comprises alkyl of 1 to 14 carbon atoms which may optionally include ether oxygens or aryl of 6 to 12 carbon atoms where the alkyl or aryl groups may be perfluorinated or partially fluorinated; and n is 1 or 2 for 1a, and n is 1, 2, or 3 for 1b. These ion exchange polymers are useful in preparing catalyst coated membranes and membrane electrode assemblies used in fuel cells.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {11}
}

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