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Preparation and characterization of polyvinyl alcohol‐grafted Fe 3 O 4 magnetic nanoparticles through glutaraldehyde
Author(s) -
Kim Su Yeon,
Ramaraj B.,
Yoon K. R.
Publication year - 2012
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.4929
Subject(s) - thermogravimetric analysis , glutaraldehyde , polyvinyl alcohol , scanning electron microscope , fourier transform infrared spectroscopy , nanoparticle , materials science , polymer , magnetic nanoparticles , chemical engineering , thermal analysis , infrared spectroscopy , nuclear chemistry , analytical chemistry (journal) , nanotechnology , chemistry , composite material , organic chemistry , thermal , physics , meteorology , engineering
Magnetic nanoparticles (MNPs) are of great interest owing to their numerous existing and potential biomedical applications. To further explore the potential of MNPs in biomedical and other fields, we have designed and synthesized polyvinyl alcohol (PVA) polymer grafted Fe 3 O 4 MNPs through glutaraldehyde (GLA) link. The success of this process has been ascertained using Fourier transform infrared (FT‐IR) analysis, thermogravimetric analysis (TGA), X‐ray diffraction (XRD) analysis and scanning electron microscopy (SEM) analysis. The FT‐IR analysis of resultant MNPs show infrared peak characteristics of PVA. TGA analysis clearly shows two major stages of thermal degradation, one corresponding to organic phase of PVA and GLA and another corresponding to Fe 3 O 4 nanoparticles. XRD results and SEM images further support the FT‐IR and TGA results and confirm the presence of PVA layer surrounding Fe 3 O 4 MNP surface. Under SEM examination, the magnetic cores exhibit somewhat irregular shapes varying from spherical, to oval to cubic. Copyright © 2012 John Wiley & Sons, Ltd.