| 摘要 |
PURPOSE:To utilize positively the function possessed by a polyion complex (PiC) as well as the conventional function as a wall membrane by using a PiC membrane as the wall membrane of a microcapsule. CONSTITUTION:The microcapsule using a PiC membrane as the wall membrane is easily and effectively manufactured by obtaining a granular polymer of a cross-linked ionic polymer by polymerizing a cationic monomer or an anionic polymer with a cross-linking agent in a W/O system, and bringing the granular polymer into contact with an aq. soln. of a polymer having an electric charge opposite to the granular polymer. The function possessed by the PiC membrane can be positively utilized as well as the conventional function as a wall membrane by using the PiC membrane as the wall membrane of the microcapsule. The microcapsule, for example, can be especially applied to a water-soluble macromolecule having low molecular weight as a gel for filtering gels, and the efficient desalting from a polymer soln. is made possible by utilizing an excellent salt excluding function of the PiC membrane. |
