Patent ID: 9046510
Filing Date: 2015-06-02
Classification: B32B,B82Y,G01N,Y10T

Abstract:
1. A membrane manufacturing method comprising: forming an alignment layer with poly(styrene-random-methyl methacrylate) (PS-ran-PMMA) on a substrate including a sacrificial layer; forming a polymer layer by coating a solution including polystyrene-block-polymethyl methacrylate-di carboxylic acid (PS-b-PMMA-diCOOH) having a dicarboxyl group(-diCOOH) on the alignment layer; and forming a plurality of nano pores, each having an inner wall formed of a poly(methyl methacrylate) (PMMA) block of which the end thereof is substituted by at least one of carboxyl group (—COOH), amine group (—NH wherein the solution including PS-b-PMMA-diCOOH further includes a PMMA single polymer, and wherein the solution including PS-b-PMMA-diCOOH is formed by mixing a polystyrene-block-poly(methyl methacrylate) block with a p-toluenesulfonic acid and hydrolyzing the mixture at 100° C. for 12 hours.