“…Poly(lactic acid) (PLA) is one of the most promising biodegradable polymer materials; it comes from nature and returns to nature. , Because of some excellent properties such as good biocompatibility, mechanical strength, and excellent transparency, it has been widely used in scaffold fabrication, , stretch-blown bottles, tissue regeneration, and so on. However, it still has some fatal flaws such as low crystallization rate, high brittleness, low melt strength, and relatively high permeability toward gases and vapor, which still limit its use in the field of daily necessities such as packaging and plastic bags. − In recent years, researchers mainly use methods such as blending PLA with other polymers, , adding a nucleation agent, , forming a stereogenic complex structure between PLLA and PDLA, − and so on to improve the toughness and crystallinity of PLA, while there are still some problems, such as the bad compatibility of the blends, the adverse influence of nucleating agent on the toughness of crystalline PLA, and the quite harsh condition of forming PLLA/PDLA stereocomplex, all of which are very urgent to be solved.…”