SYNTHESIS AND PROPERTIES OF POLY(ARYLENE ETHER)S CONTAINING 1,8-DIBENZOYLNAPHTHALENE UNITS

High molecular weight, amorphous, soluble poly(arylene ether ketone)s are synthesized from 1,8-bis(4-fluorobenzoyl)naphthalene and a variety of aromatic bisphenols. The polymers are characterized by gel permeat ion chromatography and by H-1 and C-13 NMR. The glass transition tempe ratures range from 214 to 270 degrees C, measured by differential scan ning calorimetry. The 5% weight loss from these polymers by thermograv imetric analysis occurs all above 476 degrees C in nitrogen and 478 de grees C in air. Young's moduli are between 0.70 and 4.40 GPa by thermo mechanical analysis.