Synthesis, characterization and dielectric properties of phosphazenes containing chalcones

The new hexasubstitue-cyclophosphazene compounds containing chalcone derivatives (2–11) were obtained from the reactions of hexachlorocyclotriphosphazene (1) with several hydroxy chalcones in K2CO3/acetone system. All products were generally obtained in high yields. The structures of the compounds were defined by elemental analysis, FT-IR, 1H, 13C and 31P NMR spectroscopy. Dielectric measurements for phosphazenes containing chalcone compounds (5–8) were carried out by means of an impedance analyzer as a function of temperature and frequency. Dielectric properties of samples prepared in a plate form were measured at room temperature over the frequency range 50 Hz to 2 kHz and given as compared with each other.

Graphical abstractThe new cyclophosphazene compounds containing chalcone derivatives (2–11) were obtained from the reactions of hexachlorocyclotriphosphazene (1) with several hydroxy chalcones in K2CO3/acetone system. All products were generally obtained in high yields. Dielectric properties of the synthesized compounds were also investigated.Figure optionsDownload full-size imageDownload as PowerPoint slide