Electrochemical copolymerization of thiophene and aniline

Abstract

In this study homopolymer, copolymer, and composites of aniline and thiophene were synthesized in nitrogen atmosphere by using TEATFB (Tetraethyl ammonium tetrafluoroborate) and Lithium perchlorate as supporting electrolytes. In order to analyze their structure and characteristics, IR spectrums of the samples were taken and thermogravimetric analysis (TGA) was applied. Also, the samples were photographed under scanning electron microscope (SEM) for microstructure analysis and their electrochemical properties were observed and conductivities were obtained by four probe method. Homopolymerization and copolymerization reactions were carried out in two different solvents viz. acetonitrile and benzonitrile in order to see the solvent effect on polymerization. However, changing the solvent was found to have no significant effect on the resulting properties. It was concluded that changing the supporting electrolyte caused a structural difference in the resulting homopolymer. It also affects the properties considerably. During the bilayer preparation changing the coating turn led to variations in the properties of the samples. When polythiophene (PT) was coated with polyaniline (PA), the resulting system was a composite. However, in coating PA with PT the system was identified to be a copolymer. © 1996 John Wiley & Sons, Inc.

Chemical preparation of conducting polyfuran/poly(2‐chloroaniline) composites and their properties: A comparison of their components, polyfuran and poly(2‐chloroaniline)

“…An overall look at the tabulated conductivity values reveals that the conductivities of the polymer samples tended to change according to the order of synthesis. Similar results were observed for the polyaniline/polypyrrole and polyaniline/polythiophene systems in previous electrochemical studies 20, 22…”

“…Similar results were observed for the polyaniline/polypyrrole and polyaniline/polythiophene systems in previous electrochemical studies. 20,22 Magnetic susceptibility data of the polymers shifted to positive values with an increasing amount of PFu. This shows that polaron groups in composite structure increase with an increasing amount of PFu.…”

Synthesis and characterization of nylon 6/polyalkylaniline conducting composites

“…3) demonstrated very high anodic and cathodic currents. These phenomena revealed that the polyalkylaniline films had a significant tendency for hydrogen‐ion decharging 35…”

Aqueous Electrosyntheses of Homo and Copolymers of Pyrrole and Aniline in a Binary Electrolyte System

“…24 The syntheses of some electroactive copolymers have been reported. [25][26][27][28][29] Those involving the copolymerization of Ani and Py are reported elsewhere. 30,31 Copolymerization of a pair of monomers will lead to an increase in the number of conducting polymers that can be made from the same set of monomers.…”