为了改善聚乳酸类生物降解高分子的性能,聚乳酸的改性工作越来越引人注目,尤其是聚乙二醇改性的聚乳酸类生物降解材料.介绍了聚乙二醇改性聚乳酸的各种方法,以及各种聚乙二醇改性聚乳酸材料的性能与应用,展望了聚乙二醇改性聚乳酸类生物降解材料的未来,降低合成成本是广泛应用的关键,因此简单易行的以聚乙二醇、乳酸等为原料的直接聚合法合成值得关注.
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