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Anthranilic acid assisted preparation of Fe 3 O 4 –poly(aniline‐ co ‐ o ‐anthranilic acid) nanoparticles
Author(s) -
Chao Danming,
Lu Xiaofeng,
Chen Jingyu,
Zhang Wanjin,
Wei Yen
Publication year - 2006
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.24117
Subject(s) - anthranilic acid , aniline , thermogravimetric analysis , superparamagnetism , nanoparticle , thermal stability , materials science , nuclear chemistry , fourier transform infrared spectroscopy , polymer chemistry , polymerization , chemistry , chemical engineering , magnetization , organic chemistry , nanotechnology , polymer , composite material , physics , quantum mechanics , magnetic field , engineering
Magnetic Fe 3 O 4 –poly(aniline‐ co ‐ o ‐anthranilic acid) nanoparticles were prepared by a novel and simple method: anthranilic acid assisted polymerization. The synthetic strategy involved two steps. First, Fe 3 O 4 nanoparticles capped by anthranilic acid were obtained by a chemical precipitation method, and then the aniline and oxidant were added to the modified Fe 3 O 4 nanoparticles to prepare well‐dispersed Fe 3 O 4 –poly(aniline‐ co ‐ o ‐anthranilic acid) nanoparticles. Fe 3 O 4 –poly(aniline‐ co ‐ o ‐anthranilic acid) nanoparticles exhibited a superparamagnetic behavior (i.e., no hysteresis loop) and high‐saturated magnetization ( M s = 21.5 emu/g). The structure of the composite was characterized by Fourier‐transform infrared spectra, X‐ray powder diffraction patterns, and transmission electron microscopy, which proved that the Fe 3 O 4 –poly(aniline‐ co ‐ o ‐anthranilic acid) nanoparticles were about 20 nm. Moreover, the thermal properties of the composite were evaluated by thermogravimetric analysis, and it showed excellent thermal stability. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 1666–1671, 2006