Synthesis of polylacticacid using solution polymerization method*⋆

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Polylactic acid has a good biocompatibility, biodegradability and bio-absorbability, thus it is widely used as the drug delayed release, surgical suture line and internal fixation of bone fracture. The article discussed the development of direct solution polymerization for the synthesis of polylactic acid in recent years; in addition, principle of direct solution polymerization and influence factors for relative molecular mass were also investigated. It is very vital significance to research direct synthesis of polylactic acid. The influence factors for relative molecular mass were carefully studied during solution polymerization in order to modify direct synthesis technology of polylactic acid and obtain high-relative molecular mass polylactic acid.

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