苯胺与聚硫橡胶复合膜阻抗表征

Impedance of Aniline and Thiokol Rubber Composite Film

利用电化学交流阻抗的方法研究了苯胺与聚硫橡胶干态复合膜内的电荷传输问题，通过非线性最小二乘法拟合，得出了聚苯胺（ＰＡｎ）与聚硫橡胶不同配比膜的等效电路，并计算出其电荷扩散系数和异相电子传递反应的交换电流．实验结果表明，干态膜中ＰＡｎ含量的增加，不但可以提高复合膜的导电性。

Charge transport in “dry” polyaniline(PAn)/thiokol rubber(TR) composite film was investigated by the method of electrochemical impedance spectra.By the nonlinear least square fitting,the equivalent circuit and parameter of each component are obtained.The apparent diffusion coefficients,heterogeneous electron transfer exchange current.It is found that,along with the increasing of PAn weight,conductivity and reaction activity of PAn/TR film increase.