| 摘要 |
PURPOSE:To obtain a membrane having an extremely thin dense layer and good in gas separation capacity and anti-thrombotic property, by using a silicone compound comprising a block copolymer consisting of a compound having at least one aromatic ring in the main chain or side chain thereof and an organosiloxane compound. CONSTITUTION:This silicone compound is a polymer comprising a repeating unit represented by a structural formula and dissolved in dichloromethane, chloroform and carbon tetrachloride. The obtained solution is cast to form a film which is, in turn, immersed in a non-solvent, usually, water and gelled to obtain a porous membrane. As compared with a usual support obtained by the competing reaction of plasma polymerization and plasma sputtering, plasma polymerization is exclusively and preferentially generated and, therefore, the accumulation of a stable polymer membrane is enabled and crater shaped defect or crack parts are almost eliminated. |
