Branched chain type polyaromatic ether and preparation method thereof

The invention relates to branched chain type polyaromatic ether and a preparation method thereof. The polymer molecular chain of the polyaromatic ether provided by the invention has three or more terminal hydroxyl groups and trivalent or higher-valence aromatic groups. According to the polyaromatic ether provided by the invention, the higher molecular weight is ensured on the basis of increasing the content of terminal hydroxyl groups, and the preparation method of the polyaromatic ether simplifies the production links and reduces the production cost. 本发明涉及一种支链型聚芳香醚及其制备方法。本发明提供的聚芳香醚的聚合物分子链具有三个或更多个端羟基以及三价或更高价态的芳香族基团。本发明提供的聚芳香醚在提高端羟基含量的基础上，同时保证了较大的分子量，其制备方法简化了生产环节，且降低了生产成本。