The results showed that the racemication, i.e. optical reactivity, and the amount of residual oligomers might affect the thermal properties of PLA and processibility.

• 研究结果表明:聚乳酸的消旋性即光学活性、残存单体量会影响到聚乳酸的热性能,进而影响聚乳酸的熔纺性能。