金属配合物催化制备有规立构聚丙交酯研究进展

Progress in catalytic preparation of stereoregular polylactide by metal complexes

聚丙交酯是一种生物相容可降解聚合物。立体结构是决定其物理机械性能和化学性能的重要因素,有规立构聚丙交酯聚合物链排列规整,具有更广阔的应用前景。金属配合物催化剂具有结构易调变、高效的特点,近年来被广泛应用于丙交酯开环聚合反应,并表现出良好的立构选择性。

Polylactide （ PLA） is a lasting interest over past two decades as a biodegradable and biocom-patible polyester derived from biorenewable feedstocks. Stereochemistry of polylactide is one of the main factors that determine the physical and mechanical properties of a polymeric material. The stereoregular PLA is an attractive polymeric material of high quality. The investigation of metal complexes remains an interesting topic for decades,due to tunable structure and their remarkable catalytic properties. Many ef-forts have been made to develop catalysts for ring-opening polymerization （ ROP） of lactide. Some promis-ing and high active metal complexes are used in the stereoselective ROP of lactide.