The synthesis of oxyethylene oxypropylene copolyethers used for quenchant was studied by using anionic ring opening polymerization, diol or triol as the starting agent and KOH as the catalyst. 研究了以KOH为催化剂,二元或三元醇为起始剂,采用阴离子开环聚合合成淬火剂用共聚醚。结果表明:产物的分子量随起始剂和杂质量的减少而增加;