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Synthesis and characterization of novel conducting composites of Fe 3 O 4 nanoparticles and sulfonated polyanilines
Author(s) -
Reddy Kakarla Raghava,
Lee KwangPill,
Iyengar Anantha Gopalan
Publication year - 2007
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.26020
Subject(s) - thermogravimetric analysis , polyaniline , nanocomposite , materials science , thermal stability , fourier transform infrared spectroscopy , aniline , nanoparticle , composite number , composite material , transmission electron microscopy , conductivity , polymerization , polymer chemistry , polymer , chemical engineering , chemistry , nanotechnology , organic chemistry , engineering
Surface charged iron oxide (Fe 3 O 4 ) nanoparticles were used for the synthesis of sulfonated polyaniline (SPAN)‐Fe 3 O 4 nanocomposites (SPAN/Fe 3 O 4 ‐NCs). 2,5‐diaminobenzenesulfonic acid (DABSA) and 2‐aminobenzenesulfonic acid (ABSA) were independently polymerized with aniline to form SPAN. The structure of the composites was characterized by means of transmission electron microscopy (TEM), X‐ray diffraction (XRD), thermogravimetric analysis (TGA), Fourier transform infrared (FTIR) spectra, conductivity and magnetic properties. TEM reveals that Fe 3 O 4 nanoparticles are “glued” with SPAN in the composite. TGA indicates that SPAN/Fe 3 O 4 ‐NCs are having better thermal stability. The room temperature conductivity of SPAN/Fe 3 O 4 ‐NCs is higher than that of pristine PANI and SPAN. SPAN/Fe 3 O 4 ‐NCs exhibits magnetic behavior. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 104: 4127–4134, 2007