Preparation method of polyaromatic ether

The invention relates to a preparation method of polyaromatic ether. The preparation method comprises the following steps: (1) mixing a dihalogen monomer, a bisphenol monomer, sodium phosphate and a solvent to form a reaction system; and (2) carrying out a polymerization reaction on the reaction system in an inert atmosphere, wherein no water is generated in the reaction process. According to the method disclosed by the invention, polyaryletherketone, polyarylethernitrile, polyetherimide and other polyaromatic ether can be prepared through anhydrous polymerization at a relatively high temperature, the use of a water separating agent is eliminated, and a solvent recovery process is simplified. 本发明涉及一种聚芳香醚的制备方法，其包括以下步骤：(1)将二卤单体、双酚单体、磷酸钠和溶剂进行混合，形成反应体系；(2)使反应体系在惰性气氛下进行聚合反应，所述反应过程中无水生成。本发明的方法能够在较高温度下无水产生聚合制备聚芳醚酮、聚芳醚腈以及聚醚酰亚胺等聚芳香醚，剔除了分水剂的使用以及简化了溶剂回收工艺。