Glass transition and segmental dynamics in poly(l-lactic acid)/graphene oxide nanocomposites

- No effects of filler on glass transition temperature by DSC.
- Faster and broader segmental relaxation in the nanocomposites by BDS.
- Heat capacity step and dielectric strength of α relaxation decrease in nanocomposites.
- Similar trends of the interfacial polymer fraction by DSC and BDS with composition.
- Interfacial polymer fraction correlates with mechanical reinforcement.