%0 Journal Article
%T Synthesis and characterization of poly(urethane
%A Baharak Pooladian
%A Mir Mohammad Alavi Nikje
%J Journal of Plastic Film & Sheeting
%@ 1530-8014
%D 2018
%R 10.1177/8756087917719936
%X Magnetic poly(urethane-imide) nanocomposite films were prepared by two different methods. In the first method, poly(urethane-imide) was reacted with iron oxide每silica particles magnetic and in second method synthesized poly(urethane-imide) was reacted with clay每(3-aminopropyl) triethoxysilane每iron oxide particles magnetic. Poly(urethane-imide)s were prepared using polyurethane prepolymer and pyromellitic dianhydride. The polyurethane prepolymers were prepared by reacting 4,4∩-diphenylmethane diisocyanate and polypropylene glycol. Magnetic clay每(3-aminopropyl) triethoxysilane每iron oxide nanoparticle has been prepared as a novel catalyst. The resulting magnetic nanocomposite films were characterized by Fourier transform infrared spectroscopy, proton nuclear magnetic resonance spectroscopy, thermogravimetric analysis, X-ray diffraction, vibrating sample magnetometery, and scanning electron microscopy. Observed data show that 3.5ˋpbw magnetic nanoparticles (iron oxide每silica and clay每(3-aminopropyl) triethoxysilane每iron oxide) have optimum thermal and magnetic properties when compared with pristine as well as other prepared samples containing nanocomposites less than 3.5ˋpbw nanoparticles
%K Poly(urethane-imide)
%K nanocomposites
%K polyurethane
%K polyimide
%K magnetite nanoparticles
%K clay
%K iron oxide
%K iron oxide每silica
%K clay每(3-aminopropyl) triethoxysilane每iron oxide
%U https://journals.sagepub.com/doi/full/10.1177/8756087917719936