Synthesis and Characterization of Conducting Polyaniline/Magnetic CoFe2O4 Nanocomposite

Acta Chimica Sinica ›› 2008, Vol. 66 ›› Issue (24): 2681-2685. Previous Articles Next Articles

Original Articles

导电聚苯胺与磁性CoFe2O4纳米复合物的制备与表征

苏碧桃* 左显维胡常林雷自强

(西北师范大学化学化工学院省部共建生态环境相关高分子材料教育部重点实验室甘肃省高分子材料重点实验室兰州 730070)

投稿日期:2008-02-18 修回日期:2008-05-07 发布日期:2008-12-28
通讯作者: 苏碧桃

Synthesis and Characterization of Conducting Polyaniline/Magnetic CoFe2O4 Nanocomposite

SU, Bi-Tao* ZUO, Xian-Wei HU, Chang-Lin LEI, Zi-Qiang

(Key Laboratory of Eco-Environment-Related Polymer Materials, Gansu Key Laboratory of Polymer Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070)

Received:2008-02-18 Revised:2008-05-07 Published:2008-12-28
Contact: SU, Bi-Tao

Abstract

The CoFe2O4 magnetic nanoparticles were dealt with nitric acid to form an ionization surface and improve the dispersion property of CoFe2O4 nanoparticles greatly, then the polyaniline/CoFe2O4 (PANI/CoFe2O4) electromagnetic nanocomposites were synthesized by an in-situ polymerization method. The morphologies, structure, thermal stability, and electro-magnetic property of the PANI/CoFe2O4 nanocomposites were characterized by TEM, XRD, FT-IR, TG, four-probe and VSM techniques. The results indicated that well-dispersed PANI/CoFe2O4 nanocomposites were prepared by the in-situ polymerization of monomer An on the surface of treated CoFe2O4 nanoparticles and the magnetic nanoparticles with diameters of about 25 nm were dispersed in the base of PANI. The thermal stability of the PANI/CoFe2O4 nanocomposites was remarkably improved, due to formation of the bonding interaction between the CoFe2O4 and polyaniline in the composites. And the electro-magnetic properties of the nanocomposites changed with the content of the CoFe2O4.

Key words: conducting polyaniline, CoFe2O4, electromagnetic nanocomposite, in-situ polymerization, characterization

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导电聚苯胺与磁性CoFe2O4纳米复合物的制备与表征

Synthesis and Characterization of Conducting Polyaniline/Magnetic CoFe2O4 Nanocomposite

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