New High Performance Phenolic Network Polymer Based on Benzoxazine and Cyanate Ester Resin

Abstract

Bisphenol A based benzoxazine and bisphenol E or phenol novolac based cyanate ester resin were used. The melt viscosity of benzoxazine/cyanate ester resin compound was very low before curing reaction, and the high fluidity was preferable for manipulation. The cured resin (network polymer) based on benzoxazine/cyanate ester resin system had good heat resistance, electrical insulation and water resistance. New high performance phenolic network polymer has been prepared by blending cyanate ester resin and benzoxazine.