초록 |
In this study, we investigated the radiation effect on the thermal and mechanical properties of biodegradable polymers. The films of biodegradable polymers such as PCL, PLLA and PBS were prepared by a solvent casting method and then irradiated at various absorption doses. The irradiated films were characterized in terms of their crosslinking degree, thermal and mechanical properties. The PBS film was crosslinked by irradiation, whereas the PCL and PLLA were not crosslinked. Thus, the thermal and mechanical properties of the PBS were considerably enhanced with an increasing dose, but those of the PCL and PLLA were reduced. |