TITLE:
Preparation and Characterization of Conductive Cellulosic Fabric by Polymerization of Pyrrole
AUTHORS:
Jakup Wiener, Mohamed A. Ramadan, Rehab Gomaa, Rehan Abbassi, Ali Hebeish
KEYWORDS:
Polymerization; Polymer; Pyrrole; Conductivity; Cellulose
JOURNAL NAME:
Materials Sciences and Applications,
Vol.4 No.10,
October
17,
2013
ABSTRACT:
Preparation of conductive cotton fabrics, by polymerization of pyrrole in presence of FeCl3 as an oxidizing agent and tetraethylammonium p-toluene sulfonat (TEAp-TS) as a doping agent which in turn caused a reduction in the moisture regain of the substrate, resulted in production conductive cotton fabrics in laboratory scale. Factors affecting the properties of the fabrics were studied, such as ratio between FeCl3 and TEAp-TS and pyrrole concentration. Polypyrrole coated cotton fabrics were characterized by scanning electron microscopy (SEM) and Fourier transform-infrared (FT-IR) spectroscopy. Resistivity, weight gain, color strength, tensile strength and elongation of the coated fabric with polypyrrol were monitored according to ASTM procedures. The results had shown that, the conductivity, weight gain, color strength, tensile strength and elongation increase by increasing FeCl3, TEAp-TS and pyrrole concentration. This is due to the increase of amount of the conductive polymer on the fabric surface. FeCl3 (0.25 M/L), TEAp-TS (0.125 M/L), pyrrole (0.3 M/L), temperature (25°C) and time (4 h) represented the most appropriate formulation for effecting polymerizing of pyrrole and anchoring on cotton fabrics.