Abstract
In this work, we have synthesized an epoxy resin based on Hexaglycidylester Cyclotriphosphazene (HGCP) by reaction between hexachlorocyclotriphosphazene and 2,3-epoxy-1-propanol in presence of triethylamine. The product is characterized by FTIR and (31)P, (13)C, (1)H nuclear magnetic resonance spectroscopy. The thermal stability of this resin cured with methylenedianiline (MDA) was studied by thermogravimetric analysis (TGA), and compared with the diglycidylether of bisphenol A (DGEBA). The gases evolved during TGA experiments in air atmosphere were studied by means of thermogravimetry coupled with Fourier transform infrared spectroscopy (TG-FTIR), while the solid residues were analysed by FTIR. The cured resin showed better thermal stability at elevated temperature with higher char yields at 500 degrees C compared with conventional DGEBA resin.