| 摘要 |
PROBLEM TO BE SOLVED: To provide a biodegradable polymer having a high decomposition rate in the living matter and excellent in spinnability, stretchability and mechanical strength upon being molded into a filamentous shape utilizing polyglycolic acid.SOLUTION: Provided is a branched polymer having at least three arm parts made of polyglycolic acid having a polymerization degree of 50 to 150, having a high decomposition rate in the living matter, and further excellent in spinnability, stretchability and mechanical strength upon being molded into a filamentous shape. |
