Preparation and Characterization of Nanocomposite Microspheres of Polystyrene and Fe3O4 by Emulsifier-Free Emulsion Polymerization

Yu Feng Duan; Zhao Xia Fu; Yuan Li; Hong Jie Bian; Song Zhang

doi:10.4028/www.scientific.net/AMR.804.123

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 804Preparation and Characterization of Nanocomposite...

Preparation and Characterization of Nanocomposite Microspheres of Polystyrene and Fe₃O₄ by Emulsifier-Free Emulsion Polymerization

Abstract:

Composite microspheres of polystyrene and nanoFe3O4 particles were prepared through emulsifier-free polymerization with ultrasonic dispersion. The properties of composite microsphere were investigated by FT-IR spectrum, X-ray diffraction analysis, TEM, SEM and VSM. The determine results showed that Fe₃O₄ particles prepared by coprecipitation in lab were about 7~8 nm and with a narrow size distribution and superparamagnetic characteristics. The composite microsphere of polystyrene and Fe₃O₄ showed a diameter around 20~30 nm under TEM and SEM. The data of XRD indicated crystal forms of Fe₃O₄ in the composite microsphere did not change. The XRD spectrum of composite microsphere was a overlap of Fe₃O₄ crystal and amorphous polystyrene. The result of hysteresis curve indicated that the composite microspheres still had superparamagnetic characteristics.

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Periodical:

Advanced Materials Research (Volume 804)

Pages:

123-128

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.804.123

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Online since:

September 2013

Authors:

Yu Feng Duan, Zhao Xia Fu, Yuan Li, Hong Jie Bian, Song Zhang

Keywords:

Composite Microspheres, Emulsifier-Free Polymerization, Fe₃O₄, Polystyrene

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