Spectroscopic Characterization of Poly(ortho-Aminophenol) Film Electrodes: A Review Article

Figure 13

Structure of POAP as an alternating series of oxidized (quinonoid) and reduced (N-phenyl-p-phenylenediamine) repeating units. 𝑋 is the mole fraction of reduced units in the polymer, and hence 𝑥=0 and 𝑥=1 correspond to a fully oxidized and reduced polymer molecule, respectively [7].