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Preparation and characterization of conducting polyaniline layered magnetic nano composite polymer particles
Author(s) -
Ahmad H.,
Kumar K.,
Rahman M. A.,
Rahman M. M.,
Miah M. A. J.,
Minami H.,
Nuri M. A.
Publication year - 2013
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.3138
Subject(s) - materials science , polyaniline , composite number , emulsion polymerization , thermogravimetric analysis , polymerization , methyl methacrylate , polymer , chemical engineering , x ray photoelectron spectroscopy , conductive polymer , fourier transform infrared spectroscopy , composite material , polymer chemistry , engineering
Considering the application potentials of organic materials possessing both conducting and ferromagnetic functions in various electronic devices, an attempt was made to prepare conducting polyaniline (PANI) layered magnetic nano composite polymer particles. Two routes were used to modify magnetic Fe 3 O 4 core particles. In one route, seeded emulsion polymerization of methyl methacrylate (MMA) was carried out in presence of nano‐sized Fe 3 O 4 core particles. In another route, cross‐linker ethyleneglycol dimethacrylate (EGDM) was used in addition to MMA. The modified composite particles were named as Fe 3 O 4 /PMMA and Fe 3 O 4 /P(MMA‐EGDM), respectively. Finally, seeded chemical oxidative polymerization of aniline was carried out in the presence of Fe 3 O 4 /PMMA and Fe 3 O 4 /P(MMA‐EGDM) composite seed particles to obtain Fe 3 O 4 /PMMA/PANI and Fe 3 O 4 /P(MMA‐EGDM)/PANI composite polymer particles. The modification of Fe 3 O 4 core particles was confirmed by electron micrographs, FTIR, UV–visible spectra, X‐ray photoelectron spectra, X‐ray diffraction pattern and thermogravimetric analyses. A comparative study showed that crosslinking of intermediate shell improved the magnetic susceptibility and electrical conductivity of PANI layered magnetic nano composite particles. Copyright © 2013 John Wiley & Sons, Ltd.