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US 10,626,029 B2Granted
High-performance anion exchange membranes and methods of making same
AssigneeEvoqua Water Technologies LLC
InventorJuchui Ray Lin
Life of this patent
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Abstract
Anion exchange membranes may include a polymeric microporous substrate and a cross-linked anion exchange polymeric layer on the substrate. Anion exchange membranes may have a resistivity of less than about 1.5 Ohm-cm2 and an apparent permselectivity of at least about 95%. The anion exchange membranes may be produced by a unique, two step process.
Claims11
A method of making an anion exchange membrane, comprising:
- mixing a tertiary amine monomer with a quaternization agent to produce a quaternary amine monomer;
- mixing a cross-linking agent and a solvent with the functional monomer to form a monomeric solution;
- and
- casting the monomeric solution on a polymeric microporous substrate to form the anion exchange membrane.
1 more element
Dependencies are inferred from the claim text.