Open AccessPreparation of Al@Fe2O3Core-Shell Composites Using Amphiphilic Graft Copolymer Template
Author(s) -
Rajkumar Patel,
Sang Jin Kim,
Jin Kyu Kim,
Jung Su Park,
Jong Hak Kim
Publication year - 2014
Publication title -
korean chemical engineering research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.168
H-Index - 9
eISSN - 2233-9558
pISSN - 0304-128X
DOI - 10.9713/kcer.2014.52.2.209
Subject(s) - materials science , copolymer , atom transfer radical polymerization , nanocomposite , fourier transform infrared spectroscopy , transmission electron microscopy , crystallization , composite material , scanning electron microscope , polymer chemistry , polymerization , methacrylate , chemical engineering , polymer , nanotechnology , engineering
A graft copolymer of poly(vinyl chloride)-g-poly(oxyethylene methacrylate) (PVC-g-POEM) was synthe- sized via atom transfer radical polymerization (ATRP) and used as a structure-directing agent to prepare Al@Fe 2 O 3 core-shell nanocomposites through a sol-gel process. The amphiphilic property of PVC-g-POEM allows for good dis- persion of Al particles and leads to specific interaction with iron ethoxide, a precursor of Fe 2 O 3 . Secondary bonding interaction in the sol-gel composites was characterized by Fourier transform-infrared (FT-IR) spectroscopy. The well- organized morphology of Al@Fe2O3 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.
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