Polarization Characteristics of Polymers: Poly(vinylchloride), Poly(ethyleneterephthalate), Poly(propylene), and Poly(carbonate)

摘要

We measured the variations of potentials and current densities for several polymers. The results were carefully examined to identify various factors such as temperature and pH to influence the potential and rate. The Tafel slope for anodic dissolution was determined by the polarization effect under these conditions. The optimum conditions were established for each case. The second anodic current density peak and maximum current density were designated as the relative polarization sensitivity (Ir/If). The mass-transfer coefficient value (￥á) was determined by the Tafel slope for anodic dissolution on the basis of the polarization effect under optimum conditions.