In the case of pure
PANI and its blends, the 1st step of weight loss is found to be
between 40 and 140 _C for PANI and between 40 and 110 _C
for PANI(DBSA)/PVA blend; this first step of weight loss is
caused by moisture, free acids and unreacted monomer, which
are used as solvents and dopants in the preparation of the PANI.