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US 12,715,968 B2Granted
Anion exchange polymers and membranes for electrolysis
AssigneeUop LLC
InventorsHaitao Qian, Chunqing Liu, Xueliang Dong, Nicholas Haxel
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Abstract
Anion exchange polymers comprise a plurality of repeating units of formula (I). The polymer may be synthesized from a super acid catalyzed polyhydroxyalkylation reaction of monomers Ar1′, Ar2′, and X1′ to form a neutral precursor polymer followed by a Menshutkin reaction to convert the neutral precursor polymer to the anion exchange polymer. Anion exchange membranes and membrane electrode assemblies incorporating the anion exchange polymers are also described.
Claims18
An anion exchange polymer comprising a plurality of repeating units of formula (I)
- wherein Ar1 is selected from the group consisting of:
- and mixtures thereof;
- Ar2 is selected from the group consisting of:
- and mixtures thereof;
- X1 is selected from the group consisting of:
- and mixtures thereof;
- wherein Y1− and Y2− are anions;
- wherein R1-R28 are each independently hydrogen, a halide, an alkyl group, an alkenyl group, an alkynyl group, or an aryl group, and the alkyl, alkenyl, alkynyl, or aryl groups are optionally substituted with a halide or a positively charged functional group;
- wherein R29-R31 are each independently hydrogen, an alkyl group, an alkenyl group, an alkynyl group, or an aryl group, and the alkyl, alkenyl, alkynyl or aryl groups are optionally substituted with a halide or a positively charged functional group;
- wherein R32 is an alkyl group, an alkenyl group, an alkynyl group, or an aryl group, and the alkyl, alkenyl, alkynyl or aryl group is optionally substituted with a halide or a positively charged functional group;
- wherein A is O, S, or NR100;
- wherein R100 is hydrogen, an alkyl group, an alkenyl group, an alkynyl group, or an aryl group, and the alkyl, alkenyl, alkynyl, or aryl groups are optionally substituted with a halide or a positively charged functional group;
- wherein m is an integer from 5 to 500;
- wherein n is an integer from 0 to 500 and the molar ratio of n/m is in a range of 0:1 to 20:1;
- wherein p is 1, 2, 3, or 4;
- wherein q is 0, 1, 2, or 3;
- and
- wherein t is 1, 2, 3, 4, 5, or 6.
15 more elements
Dependencies are inferred from the claim text.