Effect of Mechanical Compression and Hydrostatic Pressure on the Molecular Mobility of Poly(lactic acid)

摘要

Summary: The molecular mobility of an organic glass (PLA with 4.3% of D-lactic acid content) was investigated by calculating the size of the Cooperative Rearranging Regions (CRR) at its glass transition. The samples were exposed to different external constraints – namely a large deformation by mechanical compression at T