| abstract |
A charge mosaic membrane having excellent selectivenpermeability comprises a cationic polymer component,nan anionic polymer component and a matrix component.nBoth of the cationic polymer component and thenanionic polymer component are crosslinked particulatenpolymers. The matrix component is at least one polymernselected from a polysulfone resin, a polyarylate resin,na polyamide resin, a polyimide resin, a polyamideimidenresin, a polyurethane resin, a fluorinated resin or ansilicone resin. The charge mosaic membrane can beneasily produced by conducting formation of the membranenby using a composition in which the cationic polymerncomponent and the anionic polymer component are bothndispersed in a solution of the matrix component in annorganic solvent. |