Characterization of glycidyl methacrylate based magnetic nanocomposites

• Published in: Hemijska industrija Vol. 73; no. 1; pp. 25 - 35
• Main Authors: Markovic, Bojana, Spasojevic, Vojislav, Dapcevic, Aleksandra, Vukovic, Zorica, Pavlovic, Vladimir, Randjelovic, Danijela, Nastasovic, Aleksandra
• Format: Journal Article
• Language: English
• Published: Belgrade Hemijska Industrija 2019
• Subjects: Atomic force microscopy; Copolymerization; Copolymers; Crosslinking; Dispersion; Energy dispersive X ray spectroscopy; Fourier transforms; Infrared analysis; Infrared spectroscopy; Magnetic measurement; Magnetic saturation; Microscopy; Nanocomposites; Nanoparticles; Scanning electron microscopy; Spectroscopic analysis; Spectrum analysis; Superconducting quantum interference devices; Thermal stability; Thermogravimetric analysis; Transmission electron microscopy
• ISSN: 0367-598X; 2217-7426
• DOI: 10.2298/HEMIND181113006M

Magnetic and non-magnetic macroporous crosslinked copolymers of glycidyl
methacrylate and trimethylolpropane trimethacrylate were prepared by
suspension copolymerization and functionalized with diethylenetriamine. The
samples were characterized by mercury porosimetry, scanning electron
microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), Fourier
transform infrared spectroscopy analysis (FTIR-ATR), thermogravimetric
analysis (TGA), X-ray diffractometry (XRD), atomic force microscopy (AFM),
transmission electron microscopy (TEM) and SQUID magnetometry. The FTIR-ATR
analysis of synthesized magnetic nanocomposites confirmed the presence of
magnetite and successful amino- functionalization. Non-functionalized and
amino-functionalized nanocomposites exhibited superparamagnetic behavior at
300 K, with a saturation magnetization of 5.0 emu/g and 2.9 emu/g,
respectively. TEM analysis of the magnetic nanocomposite has shown that
magnetic nanoparticles were homogeneously dispersed in the polymer matrix.
It was demonstrated that incorporation of magnetic nanoparticles enhanced
the thermal stability of the magnetic nanocomposite in comparison to the
initial non-magnetic macroporous copolymer.
nema