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US 10,294,325 B2Granted
Halo-containing anion exchange membranes and methods thereof
AssigneeNational Technology & Engineering Solutions of Sandia, LLC
InventorCy Fujimoto
Life of this patent
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Abstract
The present invention relates to functionalized polymers including a poly(phenylene) structure having modifications suitable for an anion exchange membrane. Exemplary modifications include use of a cationic moiety and a halo moiety. Methods and uses of such structures and polymers are also described herein.
Claims20
A composition comprising a structure having the formula (I):
- or a salt thereof or a form thereof including a counter ion, wherein:
- each and every RAF comprises a cationic moiety or a halo, wherein at least one RAF is an aryl, an alkyl, or a heteroalkyl substituted with the cationic moiety;
- wherein at least one RAF is an aryl, an alkyl, or a heteroalkyl substituted with the halo;
- and wherein each of the pendent aryl groups in formula (I) is substituted with RAF;
- each R1 and R3 is, independently, H, halo, optionally substituted C1-12 alkyl, optionally substituted C1-12 haloalkyl, optionally substituted C1-12 perfluoroalkyl, optionally substituted C1-12 heteroalkyl, RS, RP, RC, or RE, wherein RS is an acidic moiety comprising a sulfonyl group, RP is an acidic moiety comprising a phosphoryl group, RC is an acidic moiety comprising a carbonyl group, and RE is an electron-withdrawing moiety;
- each ArL is, independently, a bivalent linker comprising optionally substituted arylene;
- each ArM is, independently, a bivalent linker comprising optionally substituted arylene;
- each q is, independently, an integer of from 0 to 5;
- each a is, independently, an integer of from 0 to 5, wherein at least one a is not 0;
- and
- m is an integer of from about 1 to 1000.
8 more elements
A composition comprising a structure having the formula (VI) or (VII):
- or a salt thereof or a form thereof including a counter ion, wherein:
- each and every RAF comprises a cationic moiety or a halo, wherein at least one RAF is an aryl, an alkyl, or a heteroalkyl substituted with the cationic moiety;
- wherein at least one RAF is an aryl, an alkyl, or a heteroalkyl substituted with the halo;
- and wherein each of the pendent aryl groups in formula (VI) or (VII) is substituted with RAF;
- each R1 and R3 is, independently, H, halo, optionally substituted C1-12 alkyl, optionally substituted C1-12 haloalkyl, optionally substituted C1-12 heteroalkyl, optionally substituted C1-12 perfluoroalkyl, RS, RP, RC, or RE, wherein RS is an acidic moiety comprising a sulfonyl group, RP is an acidic moiety comprising a phosphoryl group, RC is an acidic moiety comprising a carbonyl group, and RE is an electron-withdrawing moiety;
- each ArL is, independently, a bivalent linker comprising optionally substituted arylene;
- each ArM is, independently, a bivalent linker comprising optionally substituted arylene;
- each q is, independently, an integer of from 0 to 5;
- each a is, independently, an integer of from 0 to 5, wherein at least one h is not 0;
- each of m and n is, independently, an integer of from about 1 to 1000;
- L′ is a sublink;
- Ar* is a hydrophobic segment;
- and
- each RL is, independently, a reactive end group.
11 more elements
Dependencies are inferred from the claim text.