Manufacturing method of polyphenylene ether

Abstract

The object of this invention is to provide a manufacturing method that can reduce the amount of bubble layer generated during the manufacturing process while controlling the reactivity of polyphenylene ether. In order to solve the above-mentioned problem, the polyphenylene ether manufacturing method of this invention is characterized by using an apparatus having a polymerization tank and an oxygen-containing gas supply path to manufacture polyphenylene ether. It includes the step of introducing oxygen-containing gas into a solution containing a first phenol and a second phenol of the following formula (1) to carry out oxidative polymerization. The second phenol is a monofunctional phenol. A microporous member is provided at the oxygen-containing gas supply path provided in the solution to generate bubbles and supply the oxygen-containing gas to the reaction tank.