聚吡略/L-半胱胺酸/二硫醇混合自组装膜修饰电极制备的电化学研究

在不同比较L－半胺胺酸／二硫混合溶液中制备了混合自组装膜修饰电极。经过L－半胱胺酸的还原脱附后，利用循环伏安技术研究了吡咯在L－半胱胺酸／二硫醇自组装膜修饰电极表面聚合的过程和影响聚合的几个因素。实验结果表明，下面的几个因素影响着吡咯在自组装膜上的聚合：L－半胱胺酸在混合膜中的比例、支持电解质pH的大小以及聚合单体分子的大小。

Electrochemical Study of the Frication of Polypyrrole on Patterned L-cysteine/C2H6S2 Self-Assembled Mixed Monolayers

Patterned self-assembled mixed monolayers have been fabricated by immersing the electrode into the mixed solution of L-cysteine and C2S2H6 with different ratio. The electrochemical deposition of polypyrrole has been investigated at the patterned mixed monolayers by cyclic voltammetry after the reductive desorption of L-cysteine in alkaline. The results show that the following factors affect the polymer growth. They are the pH value of the supporting solution,the ratio of the reductive desorption Lcysteine and the volume of the polymerizative molecule.