Study on the Morphology of Doped Polyaniline

• Main Author: 曾宏源
• Other Authors: 林 俊 一
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/12500554583684498657

碩士 === 國立臺灣科技大學 === 化學工程系 === 91 === The effect of pulse time, τ, on the morphologies of polyaniline and doped-polyaniline in the polymerization of aniline by the method of pulse current with stainless steel electrode was investigated in this study. The experimented results indicated that polyaniline was in hexagonal structure when it was synthesized by the potentiostatic and galvanostatic method with pulse current and the electric current was 5mC. The hexagonal structure of polyaniline was found to be lost and transformed to irregular shape when electric quantity was increased to 30mC. It was also observed that the smaller the value of on-time parameter θ(＜0.1s),the easier the polyaniline particle dispersing on the electrode surface and becoming hexagonal shape. On the other hand, when the value of θ is large (＞0.1s), the obtained polyaniline was more close to irregular shape. The shape of polyaniline was found to be changed and acid anion SO42-, inserted into polyaniline when the inorganic salt anion Fe(CN)64- was inserted during polymerization of aniline.