Synthesis and properties of the polyanisidines

The oxidative polycondensation of ortho-, meta-, and para-anisidines has be en studied with cyclic voltammetry and several analytical techniques. The f irst current maxima were positioned at 0.21, 0.44, and 0.52 V for o-, p- an d m-anisidines respectively. It was determined that the reactivity of studi ed isomeric anisidines decreases in the following order: o-anisidine --> p- anisidine --> m-anisidine. This is confirmed with the results of quantum-ch emical calculations. According to the results of infrared spectroscopy (IR) , nuclear magnetic resonance (NMR), and elementary analysis, the compositio n and structure of the synthesized polyanisidines coincide with emeraldine salts with HSO4- counter ions. Specimens of synthesized polymers were used as an electroactive material in the breadboard magnesium power sources of t he Mg/1M Mg(ClO4)(2) + propylene carbonate/polyanisidine type. The specific capacities of these cells were 40.68, 124.13 and 233.70 A h/kg when the m- , p-, and o-isomers were used for cathode preparation. respectively. (C) 20 01 Elsevier Science B.V. All rights reserved.