The present invention provides: a production process for a polyalkylene oxide with fast polymerization reaction rate and good production efficiency; a catalyst for polymerization and a dispersion thereof which are effective for the above production process for a polymer such as polyalkylene oxide; and an organometallic fine particle and a production process therefor, which particle is, for example, useful as the above catalyst for polymerization. In a means therefor, a material such as an aliphatic polyol is reacted upon an organometallic compound in a micelle as the reaction field, thus preparing a hyperfine particle, which is used as a catalyst for polymerization of ionic-polymerizable monomers mainly including a cyclic ether.
本发明提供了:一种聚合反应速度快、生产效率高的聚环氧烷的生产工艺;一种聚合催化剂及其分散液,它对上述聚环氧烷等聚合物的生产工艺是有效的;以及一种有机
金属微粒及其生产工艺,该微粒例如可用作上述聚合催化剂。在其方法中,脂肪族多元醇等材料与有机
金属化合物在作为反应场的胶束中发生反应,从而制备出超细粒子,该粒子用作主要包括
环醚在内的可离子聚合单体的聚合催化剂。