Quenching and treating polysulfone membrane

Details Quenching and treating polysulfone membrane Quenching and treating polysulfone membrane

C - Chemistry, Metallurgy

08

G

18/16

C08G 69/26 (2006.01) B01D 69/12 (2006.01) B01D 71/56 (2006.01)

Patent

CA 1246816

TITLE PRODUCTION OF COMPOSITE MEMBRANES ABSTRACT A process is disclosed for producing a composite reverse osmosis membrane. The process involves forming a porous polysulfone membrane from a solution of polysulfone followed by quenching the polysulfone membrane in an aqueous solution of m-phenylenediamine followed by reacting the m-phenylenediamine on the polysulfone membrane with either trimesoyl chloride or cyclohexane-1,3,5-tricarbonyl chloride in a water immiscible solution thereof.

485665

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