| abstract |
The resin composition for a microporous support membrane of the present invention contains an aromatic polysulfone and an aromatic polyether having a proton acid group. [Effect] According to the present invention, compared to a conventional composite semipermeable membrane using a microporous support membrane made of a single polysulfone, a composite semipermeable membrane capable of exhibiting high water permeability while maintaining a salt rejection. A resin composition for a microporous support membrane, which can provide a membrane and is suitable for forming a microporous support membrane constituting the composite semipermeable membrane, and the resin composition for the microporous support membrane It is possible to provide a microporous support membrane formed using a product, and a composite semipermeable membrane having a microporous support membrane layer. [Selection figure] None |