Semipermeable polymers and method for producing same
- Boulder, CO
A polyamide membrane comprising reaction product of an anhydrous solution comprising an anhydrous solvent, at least one polyfunctional secondary amine and a pre-polymer deposition catalyst; and an anhydrous, organic solvent solution comprising a polyfunctional aromatic amine-reactive reactant comprising one ring. A composite semipermeable membrane comprising the polyamide membrane on a porous support. A method of making a composite semipermeable membrane by coating a porous support with an anhydrous solution comprising an anhydrous solvent, a polyfunctional secondary amine and a pre-polymer deposition catalyst, to form an activated pre-polymer layer on the porous support and contacting the activated pre-polymer layer with an anhydrous, organic solvent solution comprising a polyfunctional amine-reactive reactant to interfacially condense the amine-reactive reactant with the polyfunctional secondary amine, thereby forming a cross-linked, interfacial polyamide layer on the porous support. A method of impregnating a composite semipermeable membrane with nanoparticles selected from heavy metals and/or oxides of heavy metals.
- Research Organization:
- Eltron Research & Development, Inc. (Boulder, CO)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FG02-05ER84228; FG02-05ER84230
- Assignee:
- Eltron Research & Development, Inc. (Boulder, CO)
- Patent Number(s):
- 8,147,735
- Application Number:
- 12/170,036
- OSTI ID:
- 1041182
- Country of Publication:
- United States
- Language:
- English
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