DIPODAL SILANE-MODIFIED NANO FE3O4/POLYURETHANE MAGNETIC NANO COMPOSITES: PREPARATION AND CHARACTERIZATION

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ALAVI NIKJE MIR MOHAMMAD; VAKILI MARYAM; FARAJOLLAH REIHANEH; AKBAR RAHELEH; HAGHSHENAS MOSLEM

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Journal: Iranian Journal of Polymer Science and Technology Year:2016 | Volume:28 | Issue:6 Page(s): 443-453

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Title

DIPODAL SILANE-MODIFIED NANO FE3O4/POLYURETHANE MAGNETIC NANO COMPOSITES: PREPARATION AND CHARACTERIZATION

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Keywords

MAGNETIC NANOCOMPOSITESQ1

POLYURETHANE ELASTOMERQ1

FE3O4 NANOPARTICLESQ1

SURFACE MODIFICATIONQ2

DIPODAL SILANEQ1

Abstract

MAGNETIC NANOCOMPOSITES were prepared by incorporation of pure Fe3O4 and surface-modified Fe3O4 nanoparticles (dipodal silane-modified Fe3O4) into a POLYURETHANE ELASTOMER matrix by in situ polymerization method. In preparation of these MAGNETIC NANOCOMPOSITES, polycaprolactone (PCL) was used as a polyester polyol. Because of dipole-dipole interactions between nanoparticles and a large surface area to volume ratio, the magnetic iron oxide nanoparticles tended to agglomerate. Furthermore, the most important challenge was to coat the surface of magnetic Fe3O4 nanoparticles in order to prepare well dispersed and stabilized Fe3O4 magnetic nanoparticles. It was observed that SURFACE MODIFICATION of Fe3O4 nanoparticles enhanced the dispersion of the nanoparticles in polyurethane matrices and allowed MAGNETIC NANOCOMPOSITES to be prepared with better properties. SURFACE MODIFICATION of Fe3O4 was performed by DIPODAL SILANE synthesized based on 3-aminopropyltriethoxysilane (APTS) and γ-glycidoxypropyl trimethoxysilane (GPTS). DIPODAL SILANE-coated magnetic nanoparticles (DScMNPs) were synthesized and incorporated into the POLYURETHANE ELASTOMER matrix as reinforcing agents. The formation of DIPODAL SILANE was investigated by Fourier transform infrared spectroscopy (FTIR), proton nuclear magnetic resonance spectroscopy (1H NMR) and transmission electron microscopy (TEM). Characterization and study on the magnetic POLYURETHANE ELASTOMER nanocomposites were performed by FTIR, thermogravimetric analysis (TGA), scanning electron microscopy (SEM), vibrating sample magnetometry (VSM) and dynamic mechanical thermal analysis (DMTA). The VSM results showed that the synthesized POLYURETHANE ELASTOMER nanocomposites had a superparamagnetic behavior. The TGA results showed that the thermal stability of DIPODAL SILANE-modified Fe3O4/PU nanocomposite was higher than that of Fe3O4/PU nanocomposite. This could be attributed to better dispersion and compatibility of DIPODAL SILANE-modified Fe3O4 nanoparticles in the polyurethane matrix compared to pure Fe3O4 nanoparticles.

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APA: Copy

ALAVI NIKJE, MIR MOHAMMAD, VAKILI, MARYAM, FARAJOLLAH, REIHANEH, AKBAR, RAHELEH, & HAGHSHENAS, MOSLEM. (2016). DIPODAL SILANE-MODIFIED NANO FE₃O₄/POLYURETHANE MAGNETIC NANO COMPOSITES: PREPARATION AND CHARACTERIZATION. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), 28(6), 443-453. SID. https://sid.ir/paper/6679/en

Vancouver: Copy

ALAVI NIKJE MIR MOHAMMAD, VAKILI MARYAM, FARAJOLLAH REIHANEH, AKBAR RAHELEH, HAGHSHENAS MOSLEM. DIPODAL SILANE-MODIFIED NANO FE₃O₄/POLYURETHANE MAGNETIC NANO COMPOSITES: PREPARATION AND CHARACTERIZATION. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)[Internet]. 2016;28(6):443-453. Available from: https://sid.ir/paper/6679/en

IEEE: Copy

MIR MOHAMMAD ALAVI NIKJE, MARYAM VAKILI, REIHANEH FARAJOLLAH, RAHELEH AKBAR, and MOSLEM HAGHSHENAS, “DIPODAL SILANE-MODIFIED NANO FE₃O₄/POLYURETHANE MAGNETIC NANO COMPOSITES: PREPARATION AND CHARACTERIZATION,” IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), vol. 28, no. 6, pp. 443–453, 2016, [Online]. Available: https://sid.ir/paper/6679/en

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