为了改善聚乳酸的降解速率,提高其与细胞的亲和性,氨基酸对聚乳酸的改性研究引起了人们的关注.综述了聚(乳酸-氨基酸)共聚物的各种合成路线及产物降解性能的研究进展.在聚乳酸(PLA)分子中引入氨基酸,可以使产物的大分子侧链获得氨基、羟基、羧基等活性基团.与PLA相比,此类聚合物的降解性能有所提高,具有两亲性和良好的细胞相容性,可用于药物缓释体系及组织工程.
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