METHOD FOR PRODUCING POLYPHENYLENE ETHER

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a polyphenylene ether wherein the methanol used as the solidification solvent for the polyphenylene ether can be easily recovered. SOLUTION: Provided is a method for producing a polyphenylene ether wherein in continuously separating a mixed solution consisting mainly of methanol and water into each by distillation, a nonionic surfactant having oxymethylene groups in the molecule is continuously added to the distillation tower.