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Poly(acrylamide-co-acrylic acid) (PAAm-PAA) based solid polymer electrolytes (SPEs) containing potassium iodide (KI) have been prepared. The complexation between PAAm-PAA and KI has been identified through the position changes at the asymmetric NH 2  stretching and CH 2  stretching; and the intensities changes at the amide (C = O, C-N) and carboxylate (COO - ) bands using Fourier transform infrared (FTIR) spectroscopy. PAAm-PAA film exhibits a room temperature (RT) ionic conductivity of (8.8 ± 0.8) × 10 −11  S·cm −1  which increases to maximum at (4.0 ± 0.5) × 10 −7  S·cm −1  with 45 wt.% KI addition. The conductivity-temperature dependence studies of all samples followed the Arrhenius rule.

Electrical and optical properties of poly(acrylamide-co-acrylic acid) based polymer electrolytes containing water-soluble potassium iodide salt