caa a22 4500 463228456 CHVBK 20180405153234.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1007/s10853-006-1423-7 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1423-7 Synthesis of a soluble polyaniline-ferrite composite: magnetic and electric properties [Elektronische Daten] [Juan Aphesteguy, Silvia Jacobo] We report the preparation of a processible magnetite/polyaniline (Fe3O4/PANI) nanocomposite, containing dodecylbencensulfonic acid (DBSA) as a surfactant and dopant, with both magnetic and conducting properties. Different amounts of Fe3O4 nanoparticles were successfully disposed with FeCl3 solution to prevent their aggregation in the solution by the application of common ion effect. The magnetic properties of the resulting composites were investigated by a quantum design magnetometer (PMPS). The (Fe3O4/PANI) nanocomposite showed at 300K no loop of hysteresis indicating the superparamagnetic nature. The saturation magnetization varies from 0.167 to 28.45emu/g with increasing Fe3O4 content. Zero field cooling (ZFC) and Field cooling (FC) profiles showed that the polyaniline matrix allows each ferrite nanoparticles to behave independently and interparticle interactions are not important for iron oxide content lower than 36wt.%. The electrical conductivity of composites was found to be higher than that of the pure PANI in spite of the insertion of the insulating material Fe3O4 particles. It is noticeable that conductivity increases with low Fe3O4 particles content and then decreases. Structural characterization by X-ray diffraction (XRD), UV spectroscopy and thermogravimetric analysis (TGA) have been performed. Springer Science+Business Media, LLC, 2007 Aphesteguy Juan LAFMACEL, Facultad de Ingeniería, Universidad de Buenos Aires, Paseo Colón 850, 1063, Buenos Aires, Argentina aut Jacobo Silvia LAFMACEL, Facultad de Ingeniería, Universidad de Buenos Aires, Paseo Colón 850, 1063, Buenos Aires, Argentina aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/17(2007-09-01), 7062-7068 0022-2461 42:17<7062 2007 42 10853 https://doi.org/10.1007/s10853-006-1423-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1423-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Aphesteguy Juan LAFMACEL, Facultad de Ingeniería, Universidad de Buenos Aires, Paseo Colón 850, 1063, Buenos Aires, Argentina aut NATIONALLICENCE 700 1- Jacobo Silvia LAFMACEL, Facultad de Ingeniería, Universidad de Buenos Aires, Paseo Colón 850, 1063, Buenos Aires, Argentina aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/17(2007-09-01), 7062-7068 0022-2461 42:17<7062 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer