| 초록 |
Poly(L-co-D,L lactide) (PLDLA) is very valuable materials used in medical applications as implantable devices because of their excellent flexibility and biodegradability. Gamma-ray irradiation is a very useful tool to improve the physicochemical properties of various biodegradable polymers without the heating and cross-linking agent. In this study, biodegradable PLDLA was evaluated using Geant4 for damage simulation to predict the safety of against gamma ray sterilization. To verify the simulation results, the physicochemical changes in the irradiated PLDLA films were characterized by GPC, ATR-FTIR, and DSC analyses. This study is a preliminary study for radiation damage analysis and prediction of biodegradable polymers by gamma rays. |
