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The synthesis, characterization and improved ionic conductivities of the salts of poly-(2-vinylpyridine) with crotonic acid and vinyl acetic acid are reported here. In this study, the alternating current conductivity measurements were carried out within the temperature range of 30-90 • C and the frequency range of 1 Hz-100 kHz in solid state. A two-to three-fold increase in conductivity was observed for vinyl acetic acid salt whereas one-to twofold increase was observed for crotonic acid salt. The ionic transport numbers of the salts were measured with the help of the Wagner polarization technique which reveals that the percentage of ionic character of the salts are significantly higher compared with the polymer. The percentage of water uptake by the polymer and its salts were also observed.

The synthesis and conductivity study of 2-vinylpyridine-acrylonitrile copolymer and its hydroiodide/ hydrofluoride salts are reported here. The copolymer and the polyelectrolytes are characterized by infrared, proton nuclear magnatic resonance, thermogravimatric analysis, differential scanning calorimetry, X-ray diffraction, and gel permeation chromatography techniques. The alternating current conductivities are measured within the temperature range 30-90°C by varying the frequency from 42 Hz to 5 MHz and found to be significantly higher than that of the copolymer. There observed a 10 5 -and 10 4 -fold increase in ionic conductivities for the salts of HI and HF, respectively. The ionic transport numbers are measured with the help of standard Wagner polarization technique, and the values for HI and HF salts are 0.97 and 0.94, respectively, which are relatively higher than that of the copolymer (0.71). The apparent activation energies for conduction for the copolymer and its salts are also measured.