Phenyl polydiacetylene acid as well as preparation method, application and recovery thereof

The invention belongs to the field of material preparation, and discloses phenyl polydiacetylene acid as well as a preparation method, application and recovery thereof. According to the method, 1, 4-di (4 '-carboxybenzene)-1, 3-butadiyne (BDA) which cannot be subjected to topological polymerization under conventional conditions is taken as a monomer, and 1-naphthyl methylamine (NMA) is added to be complexed with the monomer to form the eutectic. And high-efficiency topological polymerization of the phenyl diyne monomer can be realized through ultraviolet irradiation at normal temperature and normal pressure. And pickling and recovering NMA to obtain the phenyl polydiacetylene acid with the side chain containing active carboxyl. The high-polymerization-degree phenyl polydiacetylene acid prepared by the method can catalyze efficient degradation of organic matters in water under visible light illumination, and recovery and regeneration of the catalyst can be realized through reversible compounding and dissociati