Application of bimetallic cyanide complex catalyst in degradation of polycondensation plastics

The invention discloses a method for catalytically degrading polycondensation plastic by using a double-metal cyanide complex. The problems that an existing catalyst is large in dosage, high in price, poor in stability and the like are solved; according to the method, a double-metal cyanide complex catalyst which is widely applied to epoxide ring-opening polymerization and CO2 and epoxide copolymerization in the industry is adopted for catalysis, and under the participation of an alcohol compound, a solvent is added or not added, so that the polycondensation plastic is degraded into small organic molecules. The catalyst has high selectivity and rate in catalyzing the depolymerization reaction of polycondensation plastics, and the catalyst has the advantages of cheap raw materials and good stability. The method has important potential industrial implementation value for degradation and recovery of polycondensation plastics. 本发明公开了一种双金属氰化络合物催化降解缩聚类塑料的方法。本发明解决了现有催化剂用量大、价格高昂、稳定性差等问题；该方法采用工业上已广泛用于环氧化物开环聚合、CO2与环氧化物