A composite of polyaniline with both conducting and ferromagnetic functions

Wan, Meixiang; Li, Wenguang

doi:10.1002/(sici)1099-0518(199708)35:11<2129::aid-pola2>3.0.co;2-t

Cited by 74 publications

(38 citation statements)

References 4 publications

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“…Further, Fe 3 O 4 nanoparticles were formed inside micelle reactor during the sedimentation process and decorated the PANI rods. PTSA having -SO À 3 group can stabilise Fe 3 O 4 nanoparticles, while hydrophobic alkyl group act as a barrier to protect the particles from agglomeration [26]. Morphology of PTSA-doped PTSA/Fe 3 O 4 composites were critically dependent on the molar ratio of aniline to PTSA.…”

Section: Resultsmentioning

confidence: 87%

Simultaneous synthesis of polyaniline nanorods and magnetite nanoparticles via self-assembly method

Basavaiah

Prasad

Rao

2012

Journal of Experimental Nanoscience

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In this work, polyaniline (PANI) nanorods and magnetite (Fe 3 O 4 ) nanoparticles have been synthesised by using ammonium persulphate as oxidant via in-situ chemical oxidative polymerisation of aniline in presence of excess of organic sulphonic acid. The resulting PANI/Fe 3 O 4 nanocomposites materials were characterised using X-ray diffraction, UV-visible spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, vibrating sampling magnetometer and thermogravimetric analysis. Spectroscopic results indicated the successful formation of PANI/Fe 3 O 4 nanocomposites. As obtained, PANI/ Fe 3 O 4 nanocomposites have Fe 3 O 4 particle size in the range of 3.2-7 nm. Morphologies of PANI/ Fe 3 O 4 nanocomposites were found to be dependent on the molar ratio of aniline to organic acid. Under certain polymerisation conditions, PANI rods like structures were obtained. PANI/Fe 3 O 4 nanocomposites have superparamagnetism and higher thermal stability.

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Section: Resultsmentioning

confidence: 87%

Simultaneous synthesis of polyaniline nanorods and magnetite nanoparticles via self-assembly method

Basavaiah

Prasad

Rao

2012

Journal of Experimental Nanoscience

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“…Yang et al reported a CNT polystyrene foam structure composite with EMI shielding effectiveness SE of 19 dB [16]. Wan et al have reported the chemical method to prepare polypyrrole composite exhibiting magnetic and conducting properties [11]. Structural and physicochemical properties of composite materials are associated with the average particle size and its distribution, particle shape, surface characteristics, and the presence or absence of bonded molecules [17,18].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of ferrofluid based nanoarchitectured polypyrrole composites and its application for electromagnetic shielding

Varshney

Ohlan

Jain

et al. 2014

Materials Chemistry and Physics

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“…When metal ions are added in the synthesized system of conducting polyaniline, the metal ions may interact with the nitrogen atoms in conducting polyaniline chains and form with both conducting and ferromagnetic polymers. The method is different from what Wan and co-workers described [8] and the resulting product is a complex rather than a composite entrapped with Fe 3 O 4 as core and polyaniline as shell.…”

Section: Introductionmentioning

confidence: 99%

“…Several approaches such as electrochemical and in-situ chemical polymerizations have been reported to prepare conducting polymer with ferromagnetic property [4][5][6][7]. Wan and coworkers reported a method for synthesizing a composite of PANI/Fe 3 O 4 with both conducting and ferromagnetic functions [8]. Aphesteguy et al reported preparation and characterization of Ni-Gd ferrite polyaniline composite of both conducting and ferromagnetic characterizations [9].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and properties on polyaniline in the presence of nickel chloride

Tan¹,

Zhang²,

Kan³

2009

Express Polym. Lett.

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Abstract. Both Conducting and Ferromagnetic polyaniline containing nickel (abbreviated as PANI-Ni) is synthesized in a solution containing aniline, HCl and NiCl2, using peroxydisulphate as an oxidant and horseradish peroxidase as a catalyst. The conductivity of PANI-Ni is about 10 -1 S cm -1 . The result of electron paramagnetic resonance (EPR) spectra indicated that there were unpaired electrons in PANI-Ni, and the spin density of the PANI-Ni was 1.09·10 19 spins g -1 . The plot of magnetization (M) against the magnetic field (H) indicated that the PANI-Ni was soft ferromagnetic at about 300 K, the saturation magnetization (Ms) and the coercive force (Hc) of which were 4.5 emu g -1 (electromagnetic unit per gram) and about 55 Oe, respectively. UV-Visible (UV-vis) and Fourier Transform Infrared (FTIR) spectra showed that there was strong interaction between Ni 2+ and PANI chains, but the backbone chains of PANI-Ni were hardly changed compared with PANI. Cyclic voltammogram results indicated that the PANI-Ni film was of excellent electrochemical activity.

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A composite of polyaniline with both conducting and ferromagnetic functions

Cited by 74 publications

References 4 publications

Simultaneous synthesis of polyaniline nanorods and magnetite nanoparticles via self-assembly method

Simultaneous synthesis of polyaniline nanorods and magnetite nanoparticles via self-assembly method

Synthesis of ferrofluid based nanoarchitectured polypyrrole composites and its application for electromagnetic shielding

Synthesis and properties on polyaniline in the presence of nickel chloride

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