| abstract |
(57) [Summary] [Purpose] It is possible to separate the porphyrin aluminum complex from the polymer and prevent the coloration of the polymer. [Structure] Porphyrin aluminum complex having an ion-exchange group, for example, tetra (3-pyridyl) porphyrin aluminum chloride, tetra (4-carboxyphenyl) porphyrin aluminum chloride, and anionic polymerization catalyst having the ability to polymerize propylene oxide, ethylene oxide and the like. . |