Abstract
AbstractThe in situ polymerization of pyrrole was carried out in the presence of γ‐Fe2O3 to synthesize polypyrrole/γ‐Fe2O3 composites by a chemical oxidation method. The polypyrrole/γ‐Fe2O3 composites were synthesized with various compositions, including 10, 20, 30, 40, and 50 wt % γ‐Fe2O3 in pyrrole. The polypyrrole/γ‐Fe2O3 composites were characterized with X‐ray diffractometry and infrared spectroscopy. The surface morphology of these composites was studied with scanning electron microscopy. The direct‐current conductivity was studied from 40 to 200°C. The dimensions of the γ‐Fe2O3 particles in the matrix had a greater influence on the conductivity values. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 2797–2801, 2007
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