Thermal analysis
DSC was performed using a Du Pont Instrument
912 Differential Scanning Calorimeter, in the
temperature range 25 °C-325 °C. The films were
previously dried at 70 °C for 60 minutes. The curves
were recorded for 6 mg of sample, at a heating rate of
20 °C/min.
Dynamic mechanical thermal analyses (DMA)
were performed using Anton Paar MCR301 rheometer
equipped with specific accessories, namely a device
for testing the extended films in a temperature range
from -50 °C to 220 °C.
Thermal degradation of polymers was performed
using a TG/FTIR system in the temperature range of
30-600 °C (303-873 K) at a heating rate of 3 °C/min in
nitrogen atmosphere. The system consists of a device
for simultaneous thermal analysis thermogravimetry
(TG), Jupiter (Netzsch – Germany) coupled with a FTIR
spectrophotometer model Vertex 70 (Bruker –
Germany).