Ionic conductivity for polymethyl acrylate (PMA) and polyvinyl acetate (PVAc) blend at composition 90:10 in the presence of tetrapropyl ammoinum iodide (TPAI) showed linear increment with temperature. At selected frequencies, the values for both dielectric constant, ε_r and dielectric loss, ε_i are found to increase with temperature. It is also found that the variation of ε_r is in agreement with conductivity variation of PMA/PVAc-TPAI samples. The imaginary part of electric modulus,M_i showed the occurance of dispersion peak. Relaxation time of ionic charge carrier are extracted from the M_i maximum peak at various temperatures. It is found that relaxation time decreased with increasing temperature from ~10^-4 s at 343 K to ~10^-5 s at 373 K.