The Xc(sc) decreases with increasing deviation of
weight ratio from 50:50. However, the Xc(sc) of PLLA80/PDLA20
blend is still 25.1% (Table 2), which is higher than that of PLLA50/
PDLA50 blend prepared by melt blending (20.1%) and approaches to
that of PLLA50/PDLA50 blend prepared by solution casting (24.9%)
(Table 1).