Method for producing aromatic polyether

摘要

Disclosed herein is a method for producing aromatic polyether which has a less coloring and high transparency and can be used for various purposes without limitation. The method comprises polymerizing (1) a substantially equimolar mixture of a dihydric phenol compound and a dihalogenobenzenoid compound and/or (2) a halophenol, in an organic solvent having high polarity, in the presence of at least one compound selected from the group consisting of alkali metal carbonates, alkali metal bicarbonates, and alkali metal hydroxides in an amount providing at least equivalent atoms of alkali metal to the phenolic hydroxyl groups, and in the presence of oxalic acid or an alkali metal salt thereof in an amount of 0.01 to 0.5% in terms of oxalic acid with respect to the weight of aromatic polyether to be obtained.