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US 8,895,104 B2Granted
Thin film composite membranes embedded with molecular cage compounds
AssigneeInternational Business Machines Corporation
InventorsYoung-Hye Na, Ratnam Sooriyakumaran, Ankit Vora, Jacquana Diep
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Abstract
A polymeric membrane on a support, wherein the polymeric membrane includes a crosslinked polymer covalently bound to a molecular cage compound. An interfacial polymerization method for making the polymeric membrane is also disclosed.
Claims15
A method, comprising:
- a) dipping a support membrane into an aqueous solution, wherein the aqueous solution comprises an amine compound and a functionalized cage compound selected from the group consisting of POSS, cyclodextrin, calixarene and combinations thereof, wherein the functionalized cage compound has at least one primary amine group having the structure (L)n-NH2, and at least one ammonium salt having the structure (L)n-NH2 HX, and wherein L is a linking group selected from the group consisting of alkylene, arylene, siloxy, an ether linkage, and combinations thereof, n is integer from 0 to 10, and X is halogen;
- b) removing the support membrane from the aqueous solution;
- and
- c) dipping the support membrane into an organic solution comprising an acid halide compound, wherein the organic solution is immiscible in water.
1 more element
A method, comprising:
- a) applying an aqueous solution to a support membrane, wherein the aqueous solution comprises an amine compound and a functionalized cage compound selected from the group consisting of POSS, cyclodextrin, calixarene and combinations thereof, wherein the functionalized cage compound has at least one primary amine group having the structure (L)n-NH2, and at least one ammonium salt having the structure (L)n-NH2 HX, and wherein L is a linking group selected from the group consisting of alkylene, arylene, siloxy, an ether linkage, and combinations thereof, n is integer from 0 to 10, and X is halogen;
- b) removing the support membrane from the aqueous solution;
- and
- c) dipping the support membrane into an organic solution comprising an acid halide compound, wherein the organic solution is immiscible in water.
1 more element
Dependencies are inferred from the claim text.