Glass–rubber transition temperature of polyaniline: Experimental and molecular dynamic simulation

Available literature reports wide variation of glass–rubber transition temperature (Tg) of polyaniline (PAni). The present study determines the Tg of doped PAni using different techniques such as differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), temperature dependent DC conductivity, and dilatometry, and it is found to vary between 30 and 40 °C. Apart from measurement techniques the Tg of PAni is found to depend on the water and dopant present in it. The Tg of PAni is again determined through molecular dynamic (MD) simulation technique and found to be in agreement with the experimentally obtained results.