SEM pictures showed that the semi-IPN system was accompanied by a phase separation.The hydrolytic degradation became apparent when long reaction time was used for the water-crosslinking.

• 扫描式电子显微镜中发现，添加其改质剂在聚乳酸中会有相分离的情形发生，而且随著水交联时间越久，水解的反应越明显。