Polylactic acid (PLA) materials are prepared from renewable resources such as corn starch or sugarcane.The first step in the preparation process involves extracting sugar from these plants, which is then fermented to produce lactic acid. Next, the lactic acid undergoes a polymerization reaction to form PLA chains. This process can be carried out using various methods including direct condensation, ring-opening polymerization, or melt polycondensation.The resulting PLA material possesses excellent degradability and biocompatibility properties, making it an ideal choice for biodegradable plastics.
