Study on melt polycondensation of poly(lactic acid)

The progress of the research recently on the polycondensation of poly(lactic acid)is reviewed at home and abroad.Which poly(lactic acid)syntheses is also investigated through the direct melt polycondensation,melt/solid polymerization as well as melt/chain-extending polymerization.And are discussed the factors that effect the molecular weight of the poly(lactic acid)in the melt polycondensation.