Effect of surface modification of [Fe.sub.3][O.sub.4] nanoparticles on thermal and mechanical properties of magnetic polyurethane elastomer nanocomposites

Magnetic polyurethane elastomer nanocomposites were prepared by incorporating pure and thiodiglycolic acid (TDGA) surface-modified [Fe.sub.3][O.sub.4] nanoparticles into polyurethane matrix using in situ polymerization method. Surface modification of [Fe.sub.3][O.sub.4] nanoparticles was carried out...

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Bibliographic Details
Published in:Journal of materials science 2013-11, Vol.48 (21), p.7493
Main Authors: Mohammadi, Abbas, Barikani, Mehdi, Barmar, Mohammad
Format: Article
Language:English
Subjects:
Biomedical engineering
Cobalt
Diffraction
Elastomers
Infrared spectroscopy
Mechanical properties
Nanoparticles
Polymerization
Polyurethanes
X-rays
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Summary:Magnetic polyurethane elastomer nanocomposites were prepared by incorporating pure and thiodiglycolic acid (TDGA) surface-modified [Fe.sub.3][O.sub.4] nanoparticles into polyurethane matrix using in situ polymerization method. Surface modification of [Fe.sub.3][O.sub.4] nanoparticles was carried out to enhance the dispersion of the nanoparticles in polyurethane matrix. Pure and TDGA surface-modified [Fe.sub.3][O.sub.4] nanoparticles were synthesized by coprecipitation method and characterized by Fourier Transform Infrared Spectroscopy, X-ray diffraction, and Vibrating Sample Magnetometer. The morphology and dispersion of the nanoparticles in the magnetic polyurethane elastomer nanocomposites were studied by Scanning Electron Microscope. It was observed that surface modification of [Fe.sub.3][O.sub.4] nanoparticles with TDGA enhanced the dispersion of the nanoparticles in polyurethane matrices. Furthermore, effect of surface modification of [Fe.sub.3][O.sub.4] nanoparticles on thermal and mechanical properties of magnetic polyurethane elastomer nanocomposite was investigated by thermogravimetric analysis, dynamic mechanical thermal analysis, and an Instron type Tensile Tester. It was concluded that surface modification of [Fe.sub.3][O.sub.4] nanoparticles allowed preparation of the magnetic nanocomposites with better mechanical properties. Moreover, study of fibroblast cells interaction with magnetic nanocomposites showed that the products can be a good candidate for biomedical application due to their in vitro biocompatibility and non-toxicity.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-013-7563-7