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Chemical synthesis, characterization, and direct‐current conductivity studies of polypyrrole/γ‐Fe 2 O 3 composites
Author(s) -
Murugendrappa M. V.,
Prasad M. V. N. Ambika
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.23868
Subject(s) - polypyrrole , materials science , scanning electron microscope , conductivity , composite material , polymerization , pyrrole , electrical resistivity and conductivity , conductive polymer , infrared spectroscopy , polymer , chemistry , organic chemistry , electrical engineering , engineering
The in situ polymerization of pyrrole was carried out in the presence of γ‐Fe 2 O 3 to synthesize polypyrrole/γ‐Fe 2 O 3 composites by a chemical oxidation method. The polypyrrole/γ‐Fe 2 O 3 composites were synthesized with various compositions, including 10, 20, 30, 40, and 50 wt % γ‐Fe 2 O 3 in pyrrole. The polypyrrole/γ‐Fe 2 O 3 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‐Fe 2 O 3 particles in the matrix had a greater influence on the conductivity values. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 2797–2801, 2007