| 摘要 |
A hyaluronic acid-hydrophobic poly amino acid copolymer is provided to carry bioactive components effectively, be easily degradable within a body, and to ensure biocompatibility and biodegradability. A hyaluronic acid-hydrophobic poly amino acid copolymer includes hyaluronic acid units and hydrophobic poly amino acid units. The hyaluronic acid has a molecular weight of 1,000,000 or more. The poly amino acid is synthesized from N-carboxy anhydrides of hydrophobic acids and forms hydrophobic parts of the hyaluronic acid-hydrophobic poly amino acid copolymer. A weight ratio of the hyaluronic acid and hydrophobic poly amino acid in the copolymer ranges from 50:1 to 1:1.
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