Polymers and membranes with acrylamide moiety
AssigneeDioxycle
InventorEdward Luke Malins
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Abstract
Polymers and membranes with acrylamide moieties are disclosed herein. A disclosed copolymer includes first repeat units of an acrylamide moiety and second repeat units of a hydrophobic moiety. The molar ratio of second repeat units:first repeat units is between 0.8:1 to 2.5:1 based on a molar ratio of the respective monomers in a production feed. The disclosed copolymer can also include a crosslinker. The amount of cross-linker in a corresponding monomer feed is 0 to 1 mol %, based on the total monomer in the production feed.
Claims27
A membrane formed by a copolymer comprising:
- first repeat units of an acrylamide moiety and second repeat units of a hydrophobic moiety, wherein the molar ratio of second repeat units:first repeat units is between 0.8:1 to 2.5:1 based on a molar ratio of the respective monomers in a production feed;
- and wherein the membrane has a water uptake of between 30% and 200%.
An electrolytic cell comprising an anode, a cathode and a membrane positioned therebetween, wherein the membrane comprises a polymer comprising first repeat units of an acrylamide moiety and second repeat units of a hydrophobic moiety, wherein the molar ratio of second repeat units:first repeat units is between 1:1 to 2:1 based on a molar ratio of the respective monomers in a production feed;
- and wherein the membrane has a water uptake of between 30% and 200%.
A method of forming a membrane formed by a polymer, the method comprising forming a first polymer by:
- mixing a first monomer comprising an acrylamide moiety, a hydrophopic second monomer and an optional crosslinker;
- wherein the molar ratio of the second monomer:first monomer is between 0.8:1 to 2.5:1 and the amount of cross-linker is from 0 to 1 mol %, based on a total amount of monomer present;
- and initiating a polymerisation;
- wherein the membrane has a water uptake of between 30% and 200%.
Dependencies are inferred from the claim text.