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:
-
- Hockessin, DE
- Issue Date:
- Research Org.:
- E.I. du Pont de Nemours and Company (Wilmington, DE)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1014933
- Patent Number(s):
- 7829603
- Application Number:
- US Patent Application 11/547,239
- 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
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP
- 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/1014933.
@article{osti_1014933,
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}
}
Works referenced in this record:
Aromatic monomers with pendant fluoroalkylsulfonate and sulfonimide groups
journal, July 2000
- Feiring, Andrew E.; Wonchoba, Edward R.
- Journal of Fluorine Chemistry, Vol. 105, Issue 1