Studies on highly conducting Polypyrrole/Fe3O4 nanocomposites

• Published in: Polymer composites Vol. 32; no. 9; pp. 1416 - 1422
• Main Authors: Mathad, Jyotsna Kiran, Rao, R.M.V.G.K.
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.09.2011; Wiley
• Subjects: Applied sciences; Composites; Exact sciences and technology; Forms of application and semi-finished materials; Polymer industry, paints, wood; Technology of polymers; Conducting material; Electrical conductivity; Iron oxide; Electrical properties; Aromatic polymer; Ferromagnetic materials; Experimental study; Composite material; Thermal stability; Conducting polymers; Thermal properties; Concentration effect; Nanocomposite; Oxidative polymerization; Pyrrole polymer; Magnetic properties
• ISSN: 0272-8397; 1548-0569
• DOI: 10.1002/pc.21167

Polypyrrole (PPy)/Fe3O4 nanocomposites were in situ synthesized using chemical oxidative polymerization in an aqueous solution of FeCl3.6H2O, in presence of different Fe3O4 loadings (0%–16.52%). These composites were characterized through a 4 Probe electrical conductivity measurement technique, Fourier Transform infrared spectroscopy, energy dispersive X‐ray spectroscopy, scanning electron microscopy, X‐ray diffraction, thermo gravimetric analysis, and vibrating sample magnetometer. Results showed maximum electrical conductivity of 75.28 S/cm for the 2.52% Fe3O4 loaded nanocomposite and with improved thermal stability compared with the host PPy. Furthermore, a linear relationship between saturated magnetization Ms and % composition of Fe3O4 in the above nanocomposites was observed, showing 6.34 emu/g at 16.52% Fe3O4/PPy nanocomposite. POLYM. COMPOS., 2011. © 2011 Society of Plastics Engineers