| abstract |
Provided is a polymer porous membrane that can be used for water treatment without using a compound that has been conventionally used as a hydrophilizing agent for a hydrophobic polymer in the production of a water treatment membrane. A fluoropolymer (A) having a vinylidene fluoride unit and a fluoropolymer (B), wherein the fluoropolymer (B) is (a) a perhaloolefin unit having 2 carbon atoms, (b) a non-aromatic unit. A fluorine-containing copolymer (B1) comprising a group-based vinyl ester monomer unit, (c) a hydroxyl group-containing vinyl monomer unit, and (d) a carboxyl group-containing monomer unit, a fluoropolymer having a vinylidene fluoride unit, ) A porous polymer membrane characterized by being at least one selected from the group consisting of resin particles (B2) containing an acrylic polymer having an acrylate unit in the same particle. [Selection] Figure 1 |