通过开环聚合的方法合成了聚己内酯-聚乙二醇-聚己内酯共聚物,以聚乙二醇为致孔剂,采用溶剂扩散法制备磁性聚合物多孔微球。结果表明微球为多孔结构,孔与孔相连,同时微球具有超顺磁性。 Polycaprolactone-polyethylene glycol-polycaprolactone copolymer was synthesized by ring-opening polymerization. Polyethylene glycol was used as pore-forming agent to prepare magnetic polymer porous microspheres by solvent diffusion method. The results showed that the microspheres were porous, the pores were connected with the pores, and the microspheres had superparamagnetism.