Degradable plastics is one of the main ways to realize the greening of chemical materials. In principle, the degradation of plastics can be divided into photodegradation, biodegradation and chemical pyrolysis.

       The key to realize the photodegradation of plastics is to introduce monomer groups or photosensitized components that are easy to photodegradate into plastics. The preparation of photosensitive monomers or components and the preparation of photodegradable plastics through copolymerization or doping are the core technologies that need to be broken through in this field.