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Evaluation of Polypyrrole Coating on Fe3O4 and Its Effect on Nanocomposite Properties

Published online by Cambridge University Press:  01 February 2011

S. Liong ,
A. W. Harter ,
R. L. Moore  and
W. S. Rees Jr
S. Liong
Affiliation:
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332
A. W. Harter
Affiliation:
Signatures Technology Laboratory, Georgia Tech Research Institute, Atlanta, GA 30332
R. L. Moore
Affiliation:
Signatures Technology Laboratory, Georgia Tech Research Institute, Atlanta, GA 30332
W. S. Rees Jr
Affiliation:
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332 School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332
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Abstract

Magnetite (Fe3O4) nanoparticles were synthesized by chemical coprecipitation and were characterized using TEM, XRD, and VSM. XRD and TEM measurements indicate that the average particle size was approximately 10 nm. The nanoparticles were coated with polypyrrole using oxidative polymerization. TGA results show that the polypyrrole coating is 28.5wt%. TEM images indicate that the nanoparticles are bound in clusters by polypyrrole. Measurements show that nanoparticles may hinder curing of the polymer matrix, but they can be effective in producing composites with higher modulus and magnetic permeability at lower frequencies.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 847: Symposium EE – Organic/Inorganic Hybrid Materials , 2004 , EE13.34
Copyright
Copyright © Materials Research Society 2005

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