| abstract |
PURPOSE: To provide a macroporous polymer film suitable for separation of a polymer, particularly a biopolymer, by forming the same from a copolymer of a specific monovinyl monomer and a divinyl monomer. n CONSTITUTION: This film is made of a copolymer obtained when a monovinyl monomer selected from a group comprising acrylates, methacrylates, vinylpyridine, and the like and a divinyl monomer selected from a group comprising alkylene diacrylate, alkylene dimethacrylate, and the like are blended in a weight ratio of 5:95 to 95:5, and the film is composed of polymer corpuscles 0.05 to 0.5μm in size, which are interconnected by covalent bond. A cross section where intercommunicated voids or pores are present between the corpuscles is 0.2 to 15mm in overall thickness and 400m 2 /g or less in specific surface area. The film is obtained when a monomer mixture dissolved in a pore-forming inactive organic solvent together with a radical initiator is put into a space comprising two faceplate and spacers and is heated to temperatures of 80°C or less for radical polymerization. n COPYRIGHT: (C)1990,JPO |