Electrochemical copolymerization of pyrrole and thiophene nanofibrils using template-synthesis method

Li, Xiaohong, Lu, Mei and Li, Hulin (2002) Electrochemical copolymerization of pyrrole and thiophene nanofibrils using template-synthesis method. Journal of Applied Polymer Science, 86 (10), 2403-2407. (doi:10.1002/app.10893).

Record type: Article

Abstract

Copolymer nanofibrils composed of pyrrole and thiophene were prepared by synthesizing the desired polymer within the pores of microporous anodic aluminum oxide (AAO) template membranes. The copolymer nanofibrils were photographed using scanning electron microscopy (SEM) and transmission electron microscopy (TEM) for microstructure analyses. The results of the SEM and TEM revealed that the copolymer nanofibrils obtained had uniform and well-aligned arrays and their diameter and length could be controlled by changing the aspect ratios of the AAO membrane. The results of cyclic voltammetry and IR spectrometry indicated that polypyrrole and polythiophene were both involved in the copolymer. The nanofibrils that were obtained were identified as copolymers rather than composites. The influence of the applied polymerization potential on the synthesis of copolymer nanofibrils was investigated. The higher potential favored the incorporation of thiophene units into the copolymer nanofibrils.

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