| abstract |
Provided are a surface-modified porous membrane having a strong hydrophilic coating layer formed by a simple operation and imparting fouling resistance, and a method for producing the same. In one or more embodiments, the present invention provides a modacrylic copolymer including a structural unit derived from acrylonitrile, a structural unit derived from a halogen-containing monomer, and a structural unit derived from a vinyl monomer having an ionic substituent. Consists of structured porous membrane, monomer having ionic group opposite to ionic substituent contained in modacrylic copolymer, and zwitterion-containing copolymer obtained by copolymerization of monomer having zwitterionic group The present invention relates to a surface-modified porous membrane in which the coated layer is bonded through ionic bonds. In one or more embodiments of the present invention, the surface-modified porous membrane is produced by immersing a porous membrane composed of a modacrylic copolymer in an aqueous solution of an amphoteric ion-containing copolymer. . [Selection figure] None |