*2.7. Thermal Analysis*

DSC was performed through a TA Q200 instrument (TA Instruments, Newcastle, DE, USA) with the heating range of 20 ◦C to 300 ◦C. TGA was performed through a TA Q500 instruments (TA Instruments, Newcastle, DE, USA) with the heating range of 50 to 600 ◦C. The rate of heating for DSC and TGA was 10 ◦C min−1.
