Characterization of glycidyl methacrylate based magnetic nanocomposites / Karakterizacija magneticnih nanokompozita na bazi glicidilmetakrilata

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 wi...

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Bibliographic Details
Published in:Hemijska industrija 2019-01, Vol.73 (1), p.25
Main Authors: Markovic, Bojana M, Spasojevic, Vojislav V, Dapcevic, Aleksandra, Vukovic, Zorica M, Pavlovic, Vladimir B, Randjelovic, Danijela V, Nastasovic, Aleksandra B
Format: Article
Language:English
Subjects:
Analysis
Atomic force microscopy
Copolymers
Electron microscopy
Infrared spectroscopy
Iron oxides
Magnetite
Magnetization
Microscopy
Nanoparticles
Polymer industry
Polymers
Porosity
Povidone
Spectroscopy
Spinel group
X-ray spectroscopy
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Summary: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. Keywords: glycidyl methacrylate; trimethylolpropane trimethacrylate; magnetic nanocomposite; diethylenetriamine U okviru ovog rada opisana je sinteza magneticnih i nemagneticnih makroporoznih umrezenih kopolimera glicidil-metakrilata i trimetilolpropan trimetakrilata suspenzionom kopolimerizacijom. Dobijeni uzorci su dodatno funkcionalizovani dietilentriaminom i okarakterisani zivinom porozimetrijom, skenirajucom elektronskom mikroskopijom sa energodisperzivnom spektrometrijom (SEM-EDS), infracrvenom spektroskopijom sa Furijeovom (Fourier) transformacijom (FTIR-ATR), termogravimetrijskom analizom (TGA), rentgenskom difrakcionom analizom (XRD), mikroskopijom atomskih sila (AFM), transmisionom elektronskom mikroskopijom (TEM) i SQUID-magnetometrijom. FTIR-ATR analizom sintetisanih magneticnih nanokompozita potvrdeno je prisustvo magnetita i uspesna amino-funkcionalizacija. Nefunkcionalizovani i amino-funkcionalizovani nanokompoziti pokazuju superparamagneticno ponasanje pri T = 300 K sa vrednostima magnetizacije zasicenja od 5 emu/g odnosno 2,9 emu/g. TEM analiza magneticnog nanokompozita pokazala je da su nanocestice magnetita homogeno dispergovane u polimernoj matrici. TGA analiza je pokazala da inkorporacija nanocestica magnetita povecava termicku stabilnost magneticnih
ISSN:0367-598X
DOI:10.2298/HEMIND181113006M