Cross-linkable fluorine-containing polyarylether, and preparation method and application thereof

The invention relates to the technical field of high polymer materials, and concretely relates to cross-linkable fluorine-containing polyarylether, and a preparation method and an application thereof.The cross-linkable fluorine-containing polyarylether provided by the invention contains a large number of fluorine atoms, and the existence of the fluorine atoms can reduce the polarity of molecules,so that the dielectric constant of the cross-linkable polymer is reduced. R group in the formula of the product is easy to be subjected to a free radical addition reaction, a cross-linked structure can be formed in a polymer molecular chain, and the addition of the cross-linked structure can improve the thermal stability and thermal mechanical properties of the polymer. According to the record ofthe embodiment, a high-temperature low-dielectric film prepared from the cross-linkable fluorine-containing polyarylether provided by the invention has excellent thermal stability and relatively lowdielectric constant. 本发明涉及高分