Naphthyl polymer as well as preparation method and application thereof

A preparation method of the naphthyl polymer comprises the following steps: S1, adding polyether amine and trimellitic anhydride into a three-neck flask, introducing nitrogen, heating, and carrying out a stirring reaction to obtain carboxyl-containing polyether amine; and S2, adding the carboxyl-containing polyether amine and naphthylamine in the step S1 into a three-neck flask, uniformly mixing, adding a catalyst, and carrying out amidation reaction to obtain the naphthyl polymer. The naphthyl polymer has a good dispersion effect on carbon black, carbon nanotubes and graphene. 本发明公开了一种萘基聚合物，其制备方法包括以下步骤：S1、将聚醚胺和偏苯三酸酐加入三口烧瓶中，通入氮气升温进行搅拌反应，得到含羧基的聚醚胺；S2、将步骤S1中含羧基的聚醚胺、萘胺、加入三口烧瓶中，混合均匀后加入催化剂，进行酰胺化反应，即得所述萘基聚合物。该萘基聚合物对炭黑、碳纳米管、石墨烯具有良好的分散效果。