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US 2025/0313668 A1Published application
Ionomers with ionic bis(sulfonyl)imide moiety and membranes containing the same
AssigneeAlliance for Sustainable Energy, LLC
InventorsMou PAUL, Bryan Scott PIVOVAR, Zbyslaw Roman OWCZARCZYK
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Abstract
This disclosure provides ionomers comprising a polymeric backbone that includes highly acidic bis(sulfonyl)imide groups and methods of making these ionomers and membranes formed from these ionomers and devices comprising these ionomer membranes.
Claims20
A bis(sulfonyl)imide ionomer comprising a polymer backbone having the chemical formula:
- wherein:
- R1 comprises at least one chemical group selected from the group consisting of:
- SO2NH2;
- sulfonic acid;
- alkyl optionally substituted with F, Cl, Br, and I;
- aryl optionally substituted with F, Cl, Br, and I;
- amine optionally substituted with F, Cl, Br, I, and alkyl;
- polysulfone;
- polyethersulfone;
- and salts thereof;
- and combinations thereof;
- and,
- R2 comprises at least one chemical group selected from the group consisting of:
- phenyl optionally substituted with F, Cl, Br, and I;
- alkyl optionally substituted with F, Cl, Br, and I;
- ether;
- polysulfone;
- polyethersulfone;
- and salts thereof;
- and combinations thereof;
- and,
- X1 and X2 are independently selected from H, F, Cl, Br, and I;
- z is 1-20 and,
- n is 2-100.
21 more elements
A bis(sulfonyl)imide ionomer comprising a polymer backbone having the chemical formula:
- wherein n is 2-100 and wherein each Ar is independently:
- wherein Y is SO3H, CF2SO3H, PO3H, or N+R where R is alkyl or aryl, n is 1-4, and Q is O, CO, SO2, C—(CH3)2, P(O)R wherein R is alkyl, or C(CX1X2)z, wherein X1 and X2 are independently selected from H, F, Cl, Br, and I;
- and, z is 1-20.
Dependencies are inferred from the claim text.