CATALYST FOR PRODUCING POLYBUTYLENE SUCCINATE AND COPOLYESTER THEREOF, AND PREPARING METHODS OF THE CATALYST

摘要

Preparing methods of catalyst for producing polybutylene succinate and copolyester thereof, which comprise (1) adding titanium alcoholate, silicon alcoholate, glycol and metal cocatalyst to solvent, reacting at 80-180℃, and removing unreacted substances and small molecule products from the reaction system, (2) adding complexing agent and continuing the reaction, then removing small molecules and collecting the catalyst from reaction products; or which comprise (1) adding titanium alcoholate, glycol and metal cocatalyst to solvent, reacting at 80-180℃, and removing unreacted substances and small molecule products from the reaction system, (2) adding silicon alcoholate and complexing agent and continuing the reaction, then removing small molecules and collecting the catalyst from reaction products.