Aliphatic polycarbonate copolymers are a new kind of completely biodegradable materials.Since the copolymerization of carbon dioxide and epoxides was first employed by Inoue et al.in1969
many achievements have been made in the field of carbon dioxide fixation as completely biodegradable materials.This review summarizes the latest progress in the catalyst preparation for the copolymerization of carbon dioxide and epoxide as well as the reaction mechanism.The relationship between structure and properties of aliphatic polycarbonate is discussed.The applications of this kind of biodegradable materials in various fields are also introduced briefly.