中文摘要：

综述了基于聚乳酸的可生物降解的形状记忆高分子材料的研究情况。首先介绍了形状记忆高分子材料的记忆效应、记忆机理，然后讨论了基于聚乳酸的三种类型的形状记忆高分子材料：单组份的聚乳酸类、聚乳酸共聚物类以及聚乳酸与无机物的复合材料，分别介绍了各种类型的形状记忆高分子材料的形状记忆性能和生物降解性能。最后，讨论了聚乳酸类记忆材料的应用情况，并对其研究前景和发展趋势进行了展望。

英文摘要：

In this paper,the progresses of shape memory polymer materials of poly lactic acid are reviewed. The shape memory effects and memory mechanism of polymer materials are introduced. In terms of the different components, the shape memory polymer materials of poly lactic acid can be divided into three types,polymers based on poly lactic aeid, based on poly lactic acid copolymers and based on poly lactic acid/inorganic materials. The behaviors of memory effects and biodegradation are discussed. Finally,the applications of poly lactic acid are introduced and the future developments of the polymer materials are prospected.