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Synthesis and investigation of methyl and methoxy groups containing polyaniline derivatives in organic medium

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Abstract

For the first time, the oxidative polymerizations of o/m-anisidines and o-toluidine were carried out by ammonium peroxydisulfate in organic medium. According to the results of UV–Vis, 1H NMR and IR spectral methods the structures of the synthesized poly(o-anisidine) coincide with emeraldine base. Formation of dihydrobenzoxazole units was shown for poly(m-anisidine), which lowers the amount of both quinonediimine and methoxy groups in polymer. Obtained polymers show enhanced solubility in organic solvents. Thermal analysis shows that at 800 °C polyanisidines lost only 48% of their initial weight. Room temperature conductivity measurements show correspondingly 2.5 × 10−1 S/cm and 9 × 10−3 S/cm values for poly(o-anisidine) and poly(o-toluidine) when doped with inorganic acids. The ionization potential and electron affinities of obtained polymers were estimated by cyclic voltammograms.

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Acknowledgements

This work was supported by ENTERPRISE INCUBATOR FOUNDATION (EIF) and PMI SCIENCE, Armenia.

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Miraqyan, N.A., Durgaryan, R.S. & Durgaryan, N.A. Synthesis and investigation of methyl and methoxy groups containing polyaniline derivatives in organic medium. Polym. Bull. (2024). https://doi.org/10.1007/s00289-023-05100-0

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