Proteus 7.1.0 analysis software

Thermogravimetric analysis was carried out using a TG 209 F1 Libra (Netzsch, Selb, Germany) thermobalance. For the materials tested in this work, approximately 12 mg of the samples were placed in ceramic crucibles (150 μL) and heated at a heating rate of 10 K/min. Thermogravimetric curves (TG) as well as the derivative curves (DTG) of the sample were obtained as an output of the experiment in the temperature range of 25–900 °C. Experiments were performed in a nitrogen atmosphere (30 mL/min) and in an oxidative atmosphere (protective gas—nitrogen 10 mL/min, and purge gas—air 30 mL/min). Netzsch Proteus 7.1.0 analysis software (Netzsch, Selb, Germany) was used to determine the mass change of the samples and DTG curves. Each measurement was performed three times to establish reproducibility. The temperatures and mass changes were given with an accuracy (standard deviation) of ± 0.5 K and 0.8% respectively.

The differential scanning calorimeter DSC 214 Polyma (Netzsch, Selb, Germany) equipped with an Intracooler IC70 (Netzsch, Selb, Germany) was used to study the glass transition temperature of the synthesized co-polymers P1–P5. Amounts of the freeze-dried samples of about 3.0 mg were sealed in an DSC aluminum (~25 μL) crucibles with a pinhole in the lid. The empty crucible of the same type was used as the reference. The measurements were performed in a nitrogen atmosphere with a flow rate of 50 mL·min⁻¹ and heating/cooling rate of 5.0 °C·min⁻¹ over a scanning temperature range from 0 to 230 °C according to a set temperature program of heating/cooling/heating/cooling/heating. The experimental running conditions were: heated to 230 °C, were isothermal 2 min, cooled to 0 °C, and were isothermal 5 min. The analysis of the recorded data was executed using Netzsch Proteus^® 7.1.0 analysis software (Netzsch, Selb, Germany). The differential scanning calorimetry was used to determine the glass transition temperatures Tg of the obtained co-polymers P1–P5. The glass transition analysis was based on a determination of the characteristic quantities of the glass transition such as the onset, midpoint, inflection, end set temperature and the glass transition height ΔCp.