Iron complex and method for preparing biodegradable polyester under catalysis of iron complex

The invention provides an azane organic iron complex and a method for preparing biodegradable polyester under catalysis of the azane organic iron complex. According to the method, an azane organic iron complex is used as a catalyst to catalyze ring-opening polymerization of cyclic esters, such as caprolactone, lactide, glycolide and other cyclic ester monomers. The method can realize controllable polymerization, the polymerization reaction condition is mild, the operation is simple, and batch industrial production is expected to be realized. The obtained polyester is high in molecular weight and good in biological safety, and is expected to be applied to the fields of biomedicine and the like. 本发明提供了一种氮烷有机铁配合物，以及利用该配合物催化制备生物可降解聚酯的方法。所述方法以氮烷有机铁配合物作为催化剂催化环酯开环聚合，如己内酯、丙交酯和乙交酯等环酯单体。该方法能够实现可控聚合，聚合反应条件温和，操作简单，有望实现批量工业化生产。得到的聚酯分子量高，生物安全性好，有望实现其在生物医学等领域的应用。