A method for making a composite polyamide membrane comprising a porous support and a thin film polyamide layer, wherein the method includes: i) applying a polar solution comprising a polyfunctional amine monomer, and a non-polar solution comprising a polyfunctional acyl halide monomer to a surface of a porous support and interfacially polymerizing the monomers to form a thin film polyamide layer, wherein the non-polar solution further comprises at least 50 vol % of a C5 to C20 aliphatic hydrocarbon and from 2 to 25 vol % of benzene or benzene substituted with one or more C1 to C6 alkyl groups; and ii) applying an aqueous solution of nitrous acid to the thin film polyamide layer.
一种制造复合聚酰胺膜的方法,包括多孔支架和聚酰胺薄膜层,其中该方法包括i) 将包含多官能团胺单体的极性溶液和包含多官能团
酰卤单体的非极性溶液涂抹在多孔支撑体的表面,并使单体界面聚合以形成聚酰胺薄膜层,其中非极性溶液进一步包含至少 50 Vol % 的 C5 至 C20 脂肪族烃和 2 至 25 Vol % 的苯或被一个或多个 C1 至 C6 烷基取代的苯;ii) 将
亚硝酸水溶液涂抹在聚酰胺薄膜层上。