Polyaniline/FE 3 O 4  magnetic nanocomposite prepared by ultrasonic irradiation | Zendy

Qiu Guihua | Zendy; Wang Qi | Zendy; Nie Min | Zendy

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Polyaniline/FE 3 O 4 magnetic nanocomposite prepared by ultrasonic irradiation

Author(s) -

Qiu Guihua,

Wang Qi,

Nie Min

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.24100

Subject(s) - polyaniline , ammonium persulfate , nanocomposite , materials science , aniline , polymerization , crystallinity , conductive polymer , polymer chemistry , chemical engineering , nuclear chemistry , polymer , composite material , chemistry , organic chemistry , engineering

Ultrasonic irradiation is employed to assist the chemical oxidative polymerization of aniline in the presence of Fe 3 O 4 nanoparticles in order to prepare a polyaniline (PANI)/Fe 3 O 4 magnetic nanocomposite. In the chemical oxidative polymerization of aniline in the initially neutral medium, the optimum molar ratio of the oxidant ammonium persulfate to the monomer aniline is 2 : 1. The prepared PANI is in the emeraldine form and is doped by sulfate anions. Fe 3 O 4 particles are encapsulated by PANI and dispersed well in PANI. Fe 3 O 4 increases the doping level and decreases the crystallinity of PANI. The PANI/Fe 3 O 4 nanocomposite possesses conductivity and magnetic properties. Increasing the Fe 3 O 4 content increases the magnetization of the PANI/Fe 3 O 4 composite but decreases its conductivity. © 2006 Wiley Periodicals Inc. J Appl Polym Sci 102: 2107–2111, 2006

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