| 摘要 |
PURPOSE: To easily separate a dissolved component or the like from a light phase by laminating a layer by crosslinking reaction of reactive group-contg. hydrophilic monomers, reactive group-contg. hydrophilic oligomers or the like on a supporting membrane having a specified compsn. to form a composite membrane. CONSTITUTION: A non-crossliniked acrylonitrile homopolymer and copolymer, and one or more kinds selected from non-crosslinked substd. acrylonitrile homopolymers and copolymers are crosslinked to form a supporting membrane such as a supporting microfiltration membrane, ultrafiltration membrane or the like. Then the supporting membrane is crosslinked with reactive group-contg. hydrophilic monomers, reactive group-contg. hydrophilic oligomers or the like to laminate than to form a solvent-stable composite membrane. A liquid phase is brought into contact with the solvent-stable composite membrane above described under higher pressure than the osmotic pressure to recover the dissolved component or the suspended component from the liquid phase. |
