The degradation of electrochemical activity is the inevitable and noticeable issue in the widespread applications of conducting polypyrrole (PPy), which involves chemical and electrochemical reactions in PPy natural degradation processes. Based on thorough insights into PPy degradation behavior, this work develops a method of theoretical derivation for the natural degradation kinetics model of PPy, which is verified in NaOH aqueous electrolytes and could be further generalized in other media. The kinetics model derives the rate equations of the chemical and electrochemical processes (v_c and v_e) in PPy degradation. The relationships of the electroactivity degradation rate constant (k_deg) and rate constants of the chemical and electrochemical processes (k_c and k_e) as well as reaction orders of PPyⁿ⁺ and OH⁻ are established through theoretical deduction. The effects of doping anions in PPy, film thickness, and electrolyte temperature on the degradation kinetics are investigated through theoretical considerations and experimental findings. The degradation level and service failure time of PPy can be effectively predicted using the kinetics model. Establishing the degradation kinetics model would signal the new perspective and depth in comprehensive studies of PPy degradation, finally facilitating the optimization of performance management in PPy practical applications.

在导电聚吡咯（PPy）的广泛应用中，电化学活性的降低是不可避免的问题，而在聚吡咯（PPy）的自然降解过程中涉及化学和电化学反应。在深入了解PPy降解行为的基础上，这项工作为PPy的自然降解动力学模型开发了一种理论推导方法，该方法已在NaOH水溶液电解质中得到验证，并可以在其他介质中进一步推广。动力学模型推导了PPy降解过程中化学和电化学过程（v _c和v _e）的速率方程。电活性降解率常数（k _deg）和化学和电化学过程（速率常数ķ _Ç和ķ _Ë以及聚吡咯的反应级数）^{的n +}和OH ^-通过理论推导确定。通过理论考虑和实验发现，研究了PPy中掺杂阴离子，膜厚度和电解质温度对降解动力学的影响。使用动力学模型可以有效地预测PPy的降解水平和服务失效时间。建立降解动力学模型将为PPy降解的综合研究提供新的视角和深度，最终促进PPy实际应用中性能管理的优化。