Prior to blending, the PLA was dried in vacuum at 80◦C for 24 h to eliminate any water that may have absorbed on the surface of the polymer particles. PLA was blended with NOL by adding NOL to the PLA matrix in different amounts (0, 2.5, 5, 7.5, 10, and 12.5% (w/w)) and extruding the mixture using a torque rheome-ter