Preparation and characterization of nickel-polystyrene nanocomposite by ultrasound irradiation
| Autor: | Yu. Koltypin, Aharon Gedanken, R. Vijaya Kumar, Oleg Palchik |
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| Rok vydání: | 2002 |
| Předmět: |
Materials science
Nanocomposite Polymers and Plastics Nanoparticle chemistry.chemical_element General Chemistry Coercivity Surfaces Coatings and Films Sonochemistry chemistry.chemical_compound Magnetization Nickel Nuclear magnetic resonance chemistry Chemical engineering Materials Chemistry Polystyrene Superparamagnetism |
| Zdroj: | Journal of Applied Polymer Science. 86:160-165 |
| ISSN: | 1097-4628 0021-8995 |
| DOI: | 10.1002/app.10930 |
| Popis: | Well-dispersed nickel nanoparticles in polystyrene were obtained by a sonochemical method. The properties of the as-prepared nanocomposite materials were characterized by XRD, TEM, EDAX, TGA, DSC, and a vibrating sample magnetometer (VSM). The nickel particles were 5 nm in diameter and were very well dispersed in the polystyrene. The magnetization measurements established that the as-prepared nanocomposite materials are superparamagnetic due to their small size. The saturation magnetization (30.1 emu/g) and coercivity (5 Oe) of the materials were significantly smaller than were those of the bulk nickel, reflecting the nanoparticle nature. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 86: 160–165, 2002 |
| Databáze: | OpenAIRE |
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