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http://dx.doi.org/10.9713/kcer.2014.52.2.209

Preparation of Al@Fe2O3 Core-Shell Composites Using Amphiphilic Graft Copolymer Template  

Patel, Rajkumar (Department of Chemical and Biomolecular Engineering, Yonsei University)
Kim, Sang Jin (Department of Chemical and Biomolecular Engineering, Yonsei University)
Kim, Jin Kyu (Department of Chemical and Biomolecular Engineering, Yonsei University)
Park, Jung Su (The 4th R&D Institute 2nd Directorate, Agency for Defense and Development (ADD))
Kim, Jong Hak (Department of Chemical and Biomolecular Engineering, Yonsei University)
Publication Information
Korean Chemical Engineering Research / v.52, no.2, 2014 , pp. 209-213 More about this Journal
Abstract
A graft copolymer of poly(vinyl chloride)-g-poly(oxyethylene methacrylate) (PVC-g-POEM) was synthesized via atom transfer radical polymerization (ATRP) and used as a structure-directing agent to prepare $Al@Fe_2O_3$ core-shell nanocomposites through a sol-gel process. The amphiphilic property of PVC-g-POEM allows for good dispersion of Al particles and leads to specific interaction with iron ethoxide, a precursor of $Fe_2O_3$. Secondary bonding interaction in the sol-gel composites was characterized by Fourier transform-infrared (FT-IR) spectroscopy. The well-organized morphology of $Al@Fe_2O_3$ core-shell nanocomposites was observed using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Energy dispersive X-ray (EDX) and X-ray diffraction (XRD) were used to analyze the elemental composition and crystallization structure of the composites.
Keywords
Sol-gel; Al; $Fe_2O_3$; Graft Copolymer; Core-shell; Atom Transfer Radical Polymerization;
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Times Cited By KSCI : 2  (Citation Analysis)
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