The study of the first stages of the transformation of conducting films from the insulating to the conducting form by oxidation is essential to understand the electrical conductivity activation of these kinds of films. This work examines this process induced by cyclic voltammetry in poly(o-toluidine) (POT) films synthesized in H₂SO₄ solution. In situ electrochemical quartz crystal microbalance (EQCM) and vis-NIR spectroscopy provide singular information complemented with the global response of current. We propose an electrochemical mechanism for the POT electrical conductivity activation by correlation of mass and spectroscopic data. On the one hand, anions are inserted during the formation of conducting polarons (P^C), which have a spectral signal at 840 nm. On the other hand, protons are expulsed when the isolated polarons (P*) detected at 420 nm are oxidized.

对于通过氧化将导电膜从绝缘转变为导电形式的第一阶段的研究，对于理解这类膜的电导率激活至关重要。这项工作研究了由循环伏安法在H ₂ SO ₄溶液中合成的聚（邻甲苯胺）（POT）薄膜中诱导的这一过程。原位电化学石英晶体微量天平（EQCM）和vis-NIR光谱学提供了奇异的信息，并补充了电流的整体响应。我们提出了一种通过质量和光谱数据相关性激活POT电导率的电化学机制。一方面，阴离子在导电极化子的形成过程中被插入（P ^C），其在840 nm处有一个光谱信号。另一方面，当在420 nm处检测到的孤立极化子（P *）被氧化时，质子会被排出。