| abstract |
An object of the present invention is to provide a high performance polysulfone separation membrane module with less adhesion of organic matter, protein, platelets and the like. A polysulfone-based separation membrane module having a vinylpyrrolidone unit and a hydrophobic unit on the surface of a polysulfone-based separation membrane, wherein the ratio of the amount of hydrophobic units existing on the surface of the membrane is larger than the amount of hydrophobic units in the membrane. . [Selection] Figure 1 |