In the present work, electropolymerized polypyrrole (PPy) films were obtained on the surface of the surgical ISO 5832‐1 stainless steel. The films were obtained from solutions containing 0.1M and 0.5M of the monomer by cyclic voltammetry deposition. The correlation between the surface chemistry of the as‐deposited films and the corrosion behavior of the coated substrate is explored. X‐ray photoelectron spectroscopy was used to study the chemical state of the main elements in the PPy films. Electrochemical impedance spectroscopy and potentiodynamic polarization tests were employed to evaluate the corrosion resistance of the PPy‐coated samples. The tests were conducted in phosphate‐buffered saline solution at 37°C. The measured corrosion current densities were dependent on the doping level of the PPy film and decreased with the reduction of the doping level of the PPy layer.

中文翻译：

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探索沉积在外科手术ISO 5832-1不锈钢上的电聚合聚吡咯膜的表面化学性质与腐蚀行为之间的关系

在当前的工作中，在外科手术ISO 5832-1不锈钢的表面上获得了电聚合的聚吡咯（PPy）膜。通过循环伏安法沉积从包含0.1M和0.5M的单体的溶液获得膜。探索了沉积膜的表面化学性质与涂层基材的腐蚀行为之间的关系。X射线光电子能谱用于研究PPy膜中主要元素的化学状态。电化学阻抗谱和电位动力学极化测试用于评估PPy涂层样品的耐腐蚀性。测试在37°C的磷酸盐缓冲盐水溶液中进行。