2.3.8. Differential scanning calorimetry (DSC) analysis
Calorimetric analysis was performed using a model 200-F3Maia differential scanning calorimeter (Netzsch, Germany). Beforeanalysis, the films were stored in a desiccator including dried sil-ica gel for 2 weeks at ambient temperature to get dehydratedfilms. Aliquots of approximately 10 mg pre-dried samples wereinserted into aluminum pans, sealed, and scanned over the range of25–350◦C with a heating rate of 10◦C/min. The unfilled aluminumpan was utilized as a reference.