| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing polyether that can manufacture the polyether in which a primary ratio of a terminal hydroxy group is high and an unsaturation degree is low, that can give excellent moldability to a modified resin using the same, and that can give excellent physical properties in strength, elongation and water resistance or the like to a molding obtained from the resin.SOLUTION: An initiator having at least one hydroxyl group in a molecule is made to perform ring-opening addition of propylene oxide in the existence of a composite metal cyanide catalyst, continuously ethylene oxide is performed by ring-opening addition in the existence of a non-nucleophilic basic catalyst, or the initiator having at least one hydroxyl group in a molecule is made to perform ring-opening addition of the propylene oxide in the existence of the composite metal cyanide catalyst, continuously the propylene oxide and the ethylene oxide are performed by random ring-opening addition in the existence of the composite metal cyanide catalyst and the non-nucleophilic basic catalyst, and further continuously the ethylene oxide is performed by ring-opening addition in the existence of the non-nucleophilic basic catalyst. |
