Polyphenylene oxides are prepared by the catalytic reaction of oxygen with a monohydroxyaromatic compound such as 2,6-xylenol in a continuous-flow tubular reactor containing multiple agitated zones. In the case of a copper catalyst system, it is often preferred to pre-mix the non-gaseous constituents of the reaction mixture in an inert atmosphere.
                            多亚苯基氧化物是在含有多个搅拌区的连续流动管式反应器中,通过氧与单羟基芳香族化合物(如 2,6-
二甲酚)的催化反应制备的。 在
铜催化剂系统中,通常倾向于在惰性气氛中预先混合反应混合物中的非气体成分。