Ferromagnetic polyaniline/TiO2 nanocomposites
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Radoičić, Marija B.Šaponjić, Zoran
Ćirić-Marjanović, Gordana N.
Konstantinović, Zorica
Mitrić, Miodrag
Nedeljković, Jovan
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Novel ferromagnetic semiconducting polyaniline PANI/TiO2 nanocomposites were synthesized by the oxidative polymerization of aniline with ammonium peroxydisulfate in an aqueous medium, in the presence of colloidal TiO2 nanoparticles (d similar to 4.5 nm), without added acid. The morphological, magnetic, structural, and optical properties of the PANI/TiO2 nanocomposites prepared at initial aniline/TiO2 mole ratios 80, 40, and 20 were studied by scanning electron microscopy, superconducting quantum interference device, X-ray powder diffraction, FTIR, Raman, and UV-Vis spectroscopies. The emeraldine salt form of linear PANI chains as well as the presence of phenazine units, branched PANI chains, and anatase crystalline structure of TiO2 in PANI/TiO2 nanocomposites was confirmed by FTIR and Raman spectroscopies. The electrical conductivity of synthesized composites was similar to 10-3 S cm-1. The room temperature ferromagnetic response with coercive field of Hc similar to 300 Oe and the rem...anent magnetization of Mr similar to 4.35 x 10-4 emu/g was detected in all investigated PANI/TiO2 nanocomposites. POLYM. COMPOS., 2012. (c) 2012 Society of Plastics Engineers
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Polymer Composites, 2012, 33, 9, 1482-1493Funding / projects:
- Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
- Size-, shape- and structure- dependent properties of nanoparticles and nanocomposites (RS-MESTD-Basic Research (BR or ON)-172056)
- Electroconducting and redox-active polymers and oligomers: synthesis, structure, properties and applications (RS-MESTD-Basic Research (BR or ON)-172043)
- Spanish MEC through RyC Program
DOI: 10.1002/pc.22278
ISSN: 0272-8397; 1548-0569
WoS: 000307938000003
Scopus: 2-s2.0-84865366191
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VinčaTY - JOUR AU - Radoičić, Marija B. AU - Šaponjić, Zoran AU - Ćirić-Marjanović, Gordana N. AU - Konstantinović, Zorica AU - Mitrić, Miodrag AU - Nedeljković, Jovan PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5015 AB - Novel ferromagnetic semiconducting polyaniline PANI/TiO2 nanocomposites were synthesized by the oxidative polymerization of aniline with ammonium peroxydisulfate in an aqueous medium, in the presence of colloidal TiO2 nanoparticles (d similar to 4.5 nm), without added acid. The morphological, magnetic, structural, and optical properties of the PANI/TiO2 nanocomposites prepared at initial aniline/TiO2 mole ratios 80, 40, and 20 were studied by scanning electron microscopy, superconducting quantum interference device, X-ray powder diffraction, FTIR, Raman, and UV-Vis spectroscopies. The emeraldine salt form of linear PANI chains as well as the presence of phenazine units, branched PANI chains, and anatase crystalline structure of TiO2 in PANI/TiO2 nanocomposites was confirmed by FTIR and Raman spectroscopies. The electrical conductivity of synthesized composites was similar to 10-3 S cm-1. The room temperature ferromagnetic response with coercive field of Hc similar to 300 Oe and the remanent magnetization of Mr similar to 4.35 x 10-4 emu/g was detected in all investigated PANI/TiO2 nanocomposites. POLYM. COMPOS., 2012. (c) 2012 Society of Plastics Engineers T2 - Polymer Composites T1 - Ferromagnetic polyaniline/TiO2 nanocomposites VL - 33 IS - 9 SP - 1482 EP - 1493 DO - 10.1002/pc.22278 ER -
@article{ author = "Radoičić, Marija B. and Šaponjić, Zoran and Ćirić-Marjanović, Gordana N. and Konstantinović, Zorica and Mitrić, Miodrag and Nedeljković, Jovan", year = "2012", abstract = "Novel ferromagnetic semiconducting polyaniline PANI/TiO2 nanocomposites were synthesized by the oxidative polymerization of aniline with ammonium peroxydisulfate in an aqueous medium, in the presence of colloidal TiO2 nanoparticles (d similar to 4.5 nm), without added acid. The morphological, magnetic, structural, and optical properties of the PANI/TiO2 nanocomposites prepared at initial aniline/TiO2 mole ratios 80, 40, and 20 were studied by scanning electron microscopy, superconducting quantum interference device, X-ray powder diffraction, FTIR, Raman, and UV-Vis spectroscopies. The emeraldine salt form of linear PANI chains as well as the presence of phenazine units, branched PANI chains, and anatase crystalline structure of TiO2 in PANI/TiO2 nanocomposites was confirmed by FTIR and Raman spectroscopies. The electrical conductivity of synthesized composites was similar to 10-3 S cm-1. The room temperature ferromagnetic response with coercive field of Hc similar to 300 Oe and the remanent magnetization of Mr similar to 4.35 x 10-4 emu/g was detected in all investigated PANI/TiO2 nanocomposites. POLYM. COMPOS., 2012. (c) 2012 Society of Plastics Engineers", journal = "Polymer Composites", title = "Ferromagnetic polyaniline/TiO2 nanocomposites", volume = "33", number = "9", pages = "1482-1493", doi = "10.1002/pc.22278" }
Radoičić, M. B., Šaponjić, Z., Ćirić-Marjanović, G. N., Konstantinović, Z., Mitrić, M.,& Nedeljković, J.. (2012). Ferromagnetic polyaniline/TiO2 nanocomposites. in Polymer Composites, 33(9), 1482-1493. https://doi.org/10.1002/pc.22278
Radoičić MB, Šaponjić Z, Ćirić-Marjanović GN, Konstantinović Z, Mitrić M, Nedeljković J. Ferromagnetic polyaniline/TiO2 nanocomposites. in Polymer Composites. 2012;33(9):1482-1493. doi:10.1002/pc.22278 .
Radoičić, Marija B., Šaponjić, Zoran, Ćirić-Marjanović, Gordana N., Konstantinović, Zorica, Mitrić, Miodrag, Nedeljković, Jovan, "Ferromagnetic polyaniline/TiO2 nanocomposites" in Polymer Composites, 33, no. 9 (2012):1482-1493, https://doi.org/10.1002/pc.22278 . .