AbstractIonic conductors based on N‐substituted oligo(ethylene oxide) poly(p‐phenylene terephthalamide) (PPTA) were investigated. Two different PPTAs (Mv= 12,000 and 3600) were grafted with tri(ethylene oxide) and hexa(ethylene oxide). These modified PPTAs were found to be soluble in organic solvents such as dimethyl acetamide and dimethyl sulfoxide and were miscible with various concentrations of oligo(ethylene oxide). The resulting blends formed complexes with lithium trifluoromethanesulfonate (LiSO3CF3). The thermal and ionic conductive properties of the blends were investigated. The conductivities of some of the blends were in the range of 0.5–5.0 × 10−5S/cm at 25°C and 0.5–5.0 × 10−4S/cm at 100°C. The profile of conductivity at various temperatures followed the Vogel–Tammann–Fulcher (VTF) plots and it suggested that the major ionic transport took place in