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New biological materials 生物新材料

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Polylactic acid 聚乳酸

Polylactic acid 聚乳酸(图1)

Polylactic acid

  A single lactic acid molecule has a hydroxyl group and a carboxyl group, multiple lactic acid molecules together, -OH is dehydrated and condensed with the -COOH of other molecules, and -COOH is dehydrated and condensed with the -OH of other molecules. In this way, they are formed hand in hand. The polymer is called polylactic acid. Polylactic acid is also called polylactide and belongs to the polyester family. Polylactic acid is a polymer obtained by polymerization of lactic acid as the main raw material. The raw material source is sufficient and can be regenerated. The production process of polylactic acid is pollution-free, and the product can be biodegraded to realize the circulation in nature, so it is an ideal green polymer material.