【摘要】 聚己内酯(PCL)具有良好的环境相容性和生物医学领域中潜在应用价值,成为近年来研究的热点课题。聚己内酯(PCL)制备方式就是催化ε-己内酯(ε-caprolactone)开环聚合,其所用催化剂对控制聚合过程和调控所得聚己内酯结构起着关键作用,并影响所得聚合物的性能和应用前景。一个重要的环节就是筛选出高活性和能够良好调控所得聚己内酯结构的优良催化剂,而且催化剂具有低毒性和良好的环境相容性。本文按照不同的金属和配体配位环境特点,讨论了近些年金属配合物在催化ε-己内酯开环聚合中的研究进展。更多还原

【Abstract】 Poly(ε-caprolactone)s have been attractive of the medical applications due to their advanced properties of biocompatibility and biodegradability.Poly(ε-caprolactone)s are prepared through the ring-opening polymerization of ε-caprolactone induced by metal complex catalysts,which play important roles in controlling the polymerization process and the structural features of resultant poly(ε-caprolactone)s,whilst catalytic systems affect the performance behaviors and the scopes of their potential applications.Therefore,it is critically important of finding a highly active complex catalyst,which could control structural properties of poly(ε-caprolactone)s,moreover,the catalytic system is required of low toxicity and good environmental compatibility.Herein the progress of metal complexes acting as catalysts in the ring-opening polymerization of ε-caprolactone is reviewed on the base of different metals and the coordination models of ligands used.更多还原