THE SYNTHESIS, CHARACTERIZATION AND THERMAL-BEHAVIOR OF FUNCTIONALIZED ARYL CYANATE ESTER MONOMERS

The syntheses of several functionalised aryl cyanate esters bearing reactive allyl groups are presented. The monomers were purified (to c. 98%) using preparative HPLC and a range of techniques, including heteronuclear nuclear magnetic resonance (NMR) spectroscopy, was employed in their characterisation. A model functionalised aryl cyanate ester was doped with a variety of additives and the resulting thermal behaviour examined using dynamic differential scanning calorimetry (DSC). Furthermore, the postulated co-reaction of the model functionalised cyanate ester with bis-maleimides was investigated using heteronuclear NMR and dynamic mechanical techniques.