| abstract |
Crystallization of a stereocomplex of a specific proportion of an organic acid metal salt or organic metal salt even when tin-based polymerization catalyst and phosphorus compound are present in poly-L-lactic acid (A) and poly-D-lactic acid (B) By using it, the stereocomplex crystallinity is high, it has a high stereocomplex crystal melting point, and even when remelted, the stereocomplex crystal melting point drop is small, the molecular weight drop is small, the molding processability is excellent, and the heat resistance is high. A stereocomplex polylactic acid composition can be provided. |