论文部分内容阅读
使用循环电位扫描法实施了苯胺的电化学聚合 .所用的电解液为苯胺和盐酸溶液 ,以及苯胺、盐酸和氯化钠溶液 .第 4次扫描的两阳极峰 [0 .1 8,0 .75V( vs SCE) ]的峰电流用作苯胺电化学聚合的速率测定 ,它们的聚合速率与苯胺的浓度之间是一级反应 .苯胺的聚合速率强烈地受盐酸浓度的影响 ,当盐酸浓度低于 2 .5mol· L-1时 ,苯胺的聚合速率与盐酸浓度之间是一级反应 .苯胺溶液中 Na Cl的存在加速了苯胺的聚合 .相对于 Na Cl,苯胺的聚合可能是一级反应 ,也可能是零级反应 ,这与 Na Cl溶液的浓度有关 .在给定的酸浓度下 ,根据实验数据 ,提出了一个与苯胺和 Na Cl有关的速率方程 ,该速率方程与实验结果相符 .
The electrochemical polymerization of aniline was carried out using a cyclic potential sweep method using aniline and hydrochloric acid as the electrolyte and aniline, hydrochloric acid and sodium chloride solutions. The anodic peak [0 .18,0 .75 V (vs SCE)] is used as the rate of electrochemical polymerization of aniline and their polymerization rate is a first order reaction with the concentration of aniline.The rate of polymerization of aniline is strongly affected by the concentration of hydrochloric acid, and when the concentration of hydrochloric acid is lower than When the molar ratio of aniline to hydrochloric acid was 2.5 mol · L-1, the aniline polymerization rate was first order reaction with the concentration of hydrochloric acid, and the presence of NaCl in the aniline solution accelerated the polymerization of aniline. It may also be a zero-order reaction, which is related to the concentration of NaCl solution.According to the experimental data at a given acid concentration, a rate equation related to aniline and NaCl is proposed, which is in agreement with the experimental results.