聚乳酸-聚乙二醇-聚乳酸三嵌段共聚物的合成及结晶行为研究

来源 :河南省化学会2018年学术年会 | 被引量 : 0次 | 上传用户：ivltuk70972

【摘要】

：

聚乳酸由于优良的生物相容性和生物降解性，成为近十年来颇受重视的高分子材料。但由于加工性能较差且制品往往较脆，在一定程度上限制了其应用。为了改善聚乳酸分子的可加工性并增加制品的韧性，本研究以左旋丙交酯(L-LA)为原料，不同分子量的聚乙二醇(PEG)为引发剂，采用开环聚合的方法制备了不同分子量和分子结构的聚乳酸-聚乙二醇-聚乳酸(PLLA-PEG-PLLA)三嵌段共聚物，并对其分子链结构和结晶行为进

【作者】

：

杨皓然张冰莹方少明

【机构】

：

郑州轻工业学院材料与化学工程学院,河南省表界面重点实验室,郑州,450000

【出处】

：

河南省化学会2018年学术年会

【发表日期】

：

2018年10期

【关键词】

：

聚乳酸聚乙二醇嵌段共聚物结晶

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聚乳酸-聚乙二醇-聚乳酸三嵌段共聚物的合成及结晶行为研究

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