Crosslinked membrane for anion exchange applications
AssigneeThe University of Toledo
InventorsMatthew Liberatore, George Amobi Ozioko, Karl Schoeps
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Abstract
Crosslinked membranes for anion exchange applications, and methods of making and using the same, are described.
Claims34
A water insoluble membrane comprising a polymer composition consisting of poly(acrylamide-co-diallyldimethylammonium chloride) (PAAcDADMAC) crosslinked with a water soluble crosslinker, wherein the polymer composition is a free-standing membrane.
A water insoluble membrane comprising a polymer composition comprising poly(acrylamide-co-diallyldimethylammonium chloride) (PAAcDADMAC) crosslinked with a water soluble crosslinker;
- wherein the polymer composition further comprises an additional, uncrosslinked polymer;
- and
- wherein the additional, uncrosslinked polymer comprises poly(diallyldimethylammonium chloride) (PDADMAC).
A water insoluble membrane comprising a polymer composition comprising poly(acrylamide-co-diallyldimethylammonium chloride) (PAAcDADMAC) crosslinked with a water soluble crosslinker;
- wherein the polymer composition further comprises an additional, uncrosslinked polymer;
- and
- wherein the additional, uncrosslinked polymer is present in an amount ranging from about 10% by weight of the total polymer composition to about 70% by weight of the total polymer composition.
A water insoluble membrane comprising a polymer composition comprising poly(acrylamide-co-diallyldimethylammonium chloride) (PAAcDADMAC) crosslinked with a water soluble crosslinker;
- wherein the polymer composition further comprises an additional, uncrosslinked polymer;
- and
- wherein the additional, uncrosslinked polymer is present in an amount ranging from about 35% by weight of the total polymer composition to about 90% by weight of the total polymer composition.
A polymer composition comprising poly(acrylamide-co-diallyldimethylammonium chloride) (PAAcDADMAC) crosslinked with a water soluble crosslinker;
- wherein the polymer composition comprises crosslinked PAAcDADMAC copolymer in an amount of at least about 35% by weight of the polymer composition;
- and
- wherein the polymer composition is a free-standing membrane.
A polymer composition comprising poly(acrylamide-co-diallyldimethylammonium chloride) (PAAcDADMAC) crosslinked with a water soluble crosslinker, and further comprising uncrosslinked poly(diallyldimethylammonium chloride) (PDADMAC).
A method of producing a membrane, the method comprising:
- combining a water soluble polymer with a water soluble crosslinker to produce a reaction mixture;
- allowing the reaction mixture to react for a period of time to produce a polymer composition comprising a crosslinked polymer;
- and
- casting the polymer composition into a free-standing membrane;
- wherein the period of time is at least one minute;
- wherein the water soluble polymer comprises poly(acrylamide-co-diallyldimethylammonium chloride) (PAAcDADMAC);
- and
- wherein the polymer composition comprises crosslinked PAAcDADMAC copolymer in an amount of at least about 35% by weight of the polymer composition.
Dependencies are inferred from the claim text.