Fig. 8 represents the conductivity of the PANI(DBSA)/PVA
blend films as a function of the PANI content. The electrical
conductivity of the blend films depended strongly on the
weight fraction of PANI in the blends (Ikkalaa et al., 1995).
Additionally, as shown in the figure, the PANI(DBSA)/PVA
blends were percolating systems. The scaling law of percolation
theory (Banerjee and Mandal, 1995) can be applied to
the data presented in Fig. 7: