Title of article :
Synthesis and characterization of new fluorine-containing polyethers
Author/Authors :
Fitch، نويسنده , , John W. and Bucio، نويسنده , , Emilio and Martinez، نويسنده , , Lymari and Macossay، نويسنده , , Javier and Venumbaka، نويسنده , , Sreenu R. and Dean، نويسنده , , Norman and Stoakley، نويسنده , , Diane and Cassidy، نويسنده , , Patrick E.، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2003
Abstract :
A highly fluorinated monomer, 1,3-bis(1,1,1,3,3,3-hexafluoro-2-pentafluorophenylmethoxy-2-propyl)benzene (12F-FBE), is obtained by reaction of the sodium salt of 1,3-bis(1,1,1,3,3,3-hexafluoro-2-hydroxy-2-propyl)benzene with pentafluorobenzyl bromide. 12F-FBE reacts with diphenols to give soluble, hydrophobic, low dielectric (2.30–2.43 at 10 GHz) polyethers. Thermal stability as measured by TGA (10 wt% loss) is moderate and ranges from 445 to 464 °C in air. Glass transition temperatures are between 89 and 110 °C.
Keywords :
Fluoropolymers , Low dielectrics , polyethers
