2.5.2. Dynamic mechanical thermal analysis (DMTA)
The samples used for DMTA were cut from narrow sections of
tensile bars with dimensions of 17.0 mm 6.0 mm. The
samples were dried at 40 8C for about 2 days and then stored
in desiccators until they were used. The thermomechanical
experiments were performed on a dynamic mechanical
analyser (DMA-Q800, TA Instruments) at a heating rate of
3 8C/min and at a frequency of 1 Hz.