不同质子酸掺杂对苯胺电聚合速率影响的确定

利用循环伏安方法在不同质子酸掺杂下电化学聚合苯胺,并以聚合电量随循环次数的变化测定苯胺电聚合的速率.结果表明苯胺的聚合速率受H ]的强烈影响:当H ]低于7.5 mol/L时,苯胺的聚合速率与H ]之间是一级反应,苯胺溶液中H ]的存在加速了苯胺的聚合;当H ]高于7.5 mol/L时,苯胺的聚合速率与H ]之间是零级反应.建立了质子酸对苯胺电化学聚合的有关速率方程,该速率方程与实验结果相符.

Effect of Different Protonic Acid on the Rate of the Electrochemical Polymerization of Aniline

The electrochemical polymerization of aniline were carried out by using the cyclic voltmmetric method in the different protonic acid.The rates measurements of the electrochemical polymerization of aniline demonstrated by the polymer electric quantity depend on cyclic number.The polymerization rate of aniline is strongly affected by concentration.The polymerization of aniline is first order with respect to the concentration of below 7.5 mol/L.The presence of in the aniline solution plays an important role in increasing the polymerization rate.The polymerization of aniline is zero order with respect to the concentration of exceed 7.5 mol/L.Based on the experimental data,a rate equation dealing with the concentration of aniline and is presented at a given acid concentration.The dependence of the polymerization rate of aniline on the concentration of aniline and in the rate equation is in good agreement with the experimental data.