CONICET | Buscador de Institutos y Recursos Humanos

In this work, different conditions for the synthesis of magnetic iron oxide nanoparticles (P) covalent functionalized are presented. These modifications were made in order to fix the magnetic material in an organic matrix by copolymerization reaction. A simple strategy of acid chloride chemistry for the modification of nanoparticles surface (FPi) is proposed. The process includes an ultrasound-supported addition in non-aqueous media to obtain iron oxide nanoparticles with organic chains covalently bonded to its surface coated. The structure and morphology of the prepared P and composite materials were characterized by transmission electron microscopy (TEM), x-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and the thermal stability (TG). The magnetic functionalized nanoparticles (FPi) can be easily included in a co-polymerization with styrene to prepare composite materials (FPi-PS). Morphological analysis of these composites confirms a homogeneous dispersion of the function-alized nanoparticles attached to the organic matrix.