Metallcontaining Nanoparticles in Carbochain Polymeric Matrixes

Abstract

In this paper in order to stabilize nanoparticles, matrices consisting of organic polymers such as polytetrafluorinethylene (teflon), polyethylene, and polypropylene are used. A universal method to introduce metal-containing nanoparticles in a teflon matrix has been developed to allow fabrication of large amounts (kilogram-scale) of nanoparticle polymer composites. Encapsulation was done by thermal decomposition of the metal-containing compounds (MRn; M = Fe, Cu, Ni; R = CO, HCOO, CH3COO) in a dispersion system of polytetrafluorinethylene in mineral oil or in a solution-melt of polyethylene or polypropylene in mineral oil. For subsequent characterization, we used TEM, EXAFS, X-ray emission spectroscopy and Mossbauer spectroscopy. The morphology and particle size distributions were investigated using a high-resolution electron microscope (TEM).