Synthesis, characterization and dielectric properties of phosphazenes containing chalcones


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Koran K., Özen F., Torgut G., Pıhtılı G., Çil E., Gorgulu A. O. , ...More

POLYHEDRON, vol.79, pp.213-220, 2014 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 79
  • Publication Date: 2014
  • Doi Number: 10.1016/j.poly.2014.04.070
  • Title of Journal : POLYHEDRON
  • Page Numbers: pp.213-220

Abstract

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,H-1,C-13 and P-31 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. (C) 2014 Elsevier Ltd. All rights reserved.