Stereocomplex poly (lactic acid) films were prepared by casting chloroform, acetonitrile or tetrahydrofuran solution of a mixture, mix-poly(lactic acid) (PLA), of poly (L-lactic acid) and poly (D-lactic acid). Time dependence of cloud point (Figure 1), as well as the morphology of the cast films (Figure 2) was markedly different in these three cast-solvents. The cast-solvent dependence of the morphology was studied by assuming that structure of stereocomplex is constructed through two processes.
- Yuichiro Koide
- Hiroki Ikake
- Shigeru Shimizu