Poly proton ejection from

From the response of the injecting charge normalised to the saturated value based on Equation 8.1, the diffusion coefficient of dopant ions can be estimated. The diffusion constants in polyaniline [13] and poly(o-methoxyaniline) film [23] in various electrolytes at pH = 0 have been summarised. The diffusion constants of poly (o-methoxyaniline) are always larger than that of polyaniline, as the oxidation occurs by ejection of protons in poly (o-methoxyaniline), while in the case of polyaniline the oxidation occurs by injection of bulky anions as discussed previously. 

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