| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of effectively manufacturing polyalkylene glycol which can be used in a wide range of fields such as adhesive agents, coating materials, sealants, elastomers, polyurethane resins such as a floor material, or raw materials for rigid, soft and semi-rigid polyurethane foam, other surfactants, sanitary products and lubricants.SOLUTION: There is provided a method of manufacturing polyalkylene glycol by adding alkylene oxide after preparing a polymerization initiator by mixing iminophosphazenium bicarbonate and an active hydrogen compound, then conducting a ring-opening polymerization reaction of alkylene oxide. |
