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US 2008/0177088 A1Published application
Arylene fluorinated sulfonimide compositions
AssigneeE. I. Du Pont de Nemours and Company
InventorMARK F. TEASLEY
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Abstract
Described herein are aromatic sulfonimide compositions that can be used to prepare polymers useful as membranes in electrochemical cells.
Claims11
A composition of Formula (I)
- wherein Ar is a univalent group of Formula (II) or (III):
- Rf is a straight chain, branched or cyclic, perfluorinated alkylene group having from 1 to 20 carbon atoms and optionally substituted with one or more ether oxygens or halogens;
- m is 1-6;
- M is one or more of monovalent cation;
- Q is S, SO2, CO, or CR1R2, wherein R1 and R2 are independently branched or cyclic perfluorinated alkyl groups having 1 to 10 carbon atoms, and wherein R1 and R2 can together form a ring;
- and X is chlorine, bromine, iodine, methanesulfonate, or trifluoromethanesulfonate.
3 more elements
A composition of Formula (VI):
- wherein X and X′ are independently F, Cl, Br, I, methanesulfonate, or trifluoromethanesulfonate.
Dependencies are inferred from the claim text.