Thin conducting polypyrrole film on insulating surface and its applications

Abstract

An electrically conductive plastic material was obtained by the polymerization of pyrrole on insulating polymeric materials and nylon cloth impregnated with the oxidant by vapour phase technique, resulting in a uniform, smooth and adherent coating of conducting polymer having a surface resistance ranging from 200f2/IS] to 20k~/l~, which makes it suitable for applications as an antistatic material.

Polypyrrole Conducting Electroactive Polymers: Synthesis and Stability Studies

“…These in turns influence the final conductivity of the chemically synthesised polypyrrole 15,16 . Elemental analysis data has shown 25 that the composition of polypyrrole prepared chemically is almost identical with that electrochemically prepared.…”

“…The overall stoichiometry resulting from chemical polymerisation of PPy with ferric chloride oxidant is shown in Figure 1. The optimum initial mole ratio of Fe (III)/Pyrrole for polymerisation by aqueous iron (III) chloride solution at 19 o C has been found 20,25 to be 2.25 or 2.33. During chemical polymerisation of pyrrole, electroneutrality of the polymer matrix is maintained by incorporation of anions from the reaction solution.…”

Ionic conductivity in polypyrrole–poly (vinyl acetate) films synthesized by chemical oxidative polymerization method

“…Dhawan and Trivedi [8] deposited a thin conducting PPy film on an insulating surface by vapour phase technique. In this study, observed that the electrical or mechanical properties of the polypyrrole film depended upon the method of synthesis and the synthesis conditions including strength of oxidizing or reducing agent, the doping concentration, the temperature of polymerization, and the polymerization time.…”

Flexible papers derived from polypyrrole deposited cellulose nanofibers for enhanced electromagnetic interference shielding in gigahertz frequencies

“…In order to rectify this problem, considerable works have been reported on the fabrication of different PPy composites with a wide range of polymeric materials with excellent physical properties and good processability. Various polymeric materials such as polyoxyphenylene, 27 polyester, 28 polyamide, 29 cellulose, 26,30,31 rubber, 24,32 and plastic 33,34 have been extensively studied with PPy for various technological applications. Among them, cellulose nanofibers (CNFs) have drawn more interest due to its abundant, cost effectiveness and eco-friendly nature.…”