For lactic acid has one asymmetric carbon atom, the mechanical, physical and biological properties of PLA are related to the stereochemistry of lactic acids.

• 合成聚乳酸的初始物质乳酸是有手性的分子,使得聚乳酸的机械和物理性能以及生物学性质与乳酸单体的立体异构性有关。