A process for producing a polyphenylene ether comprises oxidatively polymerizing a phenol in an organic solvent in the presence of an oxidative polymerization catalyst, finely dispersing the resulting polyphenylene ether contained in the organic solvent in an aqueous dispersion medium containing an acid compound, and heating the aqueous dispersion to remove the solvent from the polyphenylene ether. The resulting polyphenylene ether has excellent powder properties and contains a reduced amount of catalyst residue.
生产聚苯醚的工艺包括:在氧化聚合催化剂存在下,在有机溶剂中对
苯酚进行氧化聚合;将有机溶剂中所含的聚苯醚分散在含有酸化合物的
水分散介质中;加热
水分散介质,从聚苯醚中除去溶剂。 得到的聚苯醚具有极佳的粉末特性,且催化剂残留量较低。