Membranes derived from combinations of multifunctional amines and different multifunctional amine reactive monomers

摘要

A method for producing a composite polyamide membrane comprising a porous support and a thin polyamide layer, the step of applying a multifunctional amine monomer and a combination of amine reactive compounds to the surface of the porous support, and Reacting the components to form a thin film polyamide layer, wherein said amine reactive compound comprises a plurality of amine reactive moieties selected from i) acyl halides, sulfonyl halides and anhydrides. A functional amine-reactive monomer; ii) a polyfunctional amine-reactive monomer comprising at least four amine-reactive moieties selected from acyl halides, sulfonyl halides and anhydrides; and iii) at least one carboxylic acid moiety Or a salt thereof and at least selected from acyl halides and sulfonyl halides One of and an acid compound containing an amine-reactive portion. [Selection figure] None