 |
|
 |
|
|
| Volume 3, Issue 03 - 2007 |
|
|
| 4 |
MAGNETIC COMPOSITES BETWEEN CORE-SHELL Fe@Au NANOPARTICLES AND POLYMERS |
| |
| Pages 96-102 |
| |
| O. PANA1, I. CRACIUNESCU1, CARMEN MIJANGOS2, EUNATE GOITI2, M. L. SORAN1, R. TURCU1
AND O. CHAUVET3
|
| |
1 National Institute for Research and Development of Isotopic and Molecular Technology., P.O.Box 700, Cluj-Napoca 5, 400293 Romania
2 Instituto de Ciencia y Tecnología de Polímeros, CSIC, Calle Juan de la Cierva 3, 28006 Madrid, Spain
3 Institute of Materials Jean Rouxel Nantes, 2 rue de la Houssinière,B.P. 32229, 44322 Nantes cedex 3, France |
| |
| Received 29 April 2007; accepted 12 July 2007 |
| |
In this work we report the synthesis and characterization of composites obtained by embedding magnetic nanoparticles like core(Fe) – shell(Au), (Fe@Au) in different polymeric matrices: poly (vinylchloride) (PVC), poly(vinyl alcohol) (PVA) and polypyrrole (PPy) respectively. The samples were prepared with different filling ratios for the (Fe@Au) nanoparticles. The properties of these composites were investigated by using transmission electron microscopy (TEM), high-resolution TEM, X-Rays diffraction (XRD), thermogravimetric analysis (TGA) and magnetization measurements as function of the applied external field. The composites have different behaviours concerning their thermal degradation and magnetic response at an applied external magnetic field resulting from different intimate interactions between various polymers and the gold shell of the nanoparticles.
Keywords: magnetic nanoparticles, Fe@Au, PVC, PVA, PPy, ferrogels. |
| |
back |
|
|
|
|
|
|