Meanwhile, mechanical property, water absorption and degradability of PLA-PEG multiblock copolymers was remarkablely changed with the content and molecular weight of poly(ethylene glycol).

• 同时,聚丙交酯-聚乙二醇嵌段共聚物膜的力学性能、亲水性和降解性,随PEG含量及分子量的变化有显著改变。