Abstract

A new silicated cyclotriphosphazene N3P3(O 2C12H8)2(OC6H 4Si(CH3)3)(OC6H4Br) 1 has been synthesized and characterized. The solid state pyrolysis of 1 in air gives a nanostructured SiP2O7 3D network. The morphology of the network strongly depends on the temperature of the pyrolysis. Spinal-like columns and ring-shaped SiP2O7 are formed at 800°C, while, at 600°C, fused grains of about 300 nm were observed. Based on air TG and DSC thermal studies, we propose the mechanism of formation for the nanostructured network. © 2008 Springer Science+Business Media, LLC.