Progress in Synthesis and Modification of Biodegradable Poly(lactic acid)

The synthesis and modification methods for biodegradable poly(lactic acid) are introduced. The main polymerization methods for the synthesis of poly(lactic acid) include open-ring polymerization, direct bulk polycondensation, chain extension polymerization, etc. The structure and properties of poly(lactic acid) could be modified to extend the application of poly(lactic acid) by means of co-polymerization, blend, block, graft, fiber reinforcing, and so on.