Properties of a Novel Crystalline Polymer Obtained from an Epoxy Resin having a Biphenylene Structure and 4,4’-dihydroxybiphenyl

Abstract

A novel crystalline polymer （BP-BP Polymer） was synthesized by reacting an epoxy resin having a biphenylene structure with 4,4’-dihydroxybiphenyl. Then, the properties of BP-BP Polymer were compared with those of the polymer from an epoxy resin having a diphenylene ether structure and 4,4’ -dihydroxydiphenylether （DE-DE Polymer）． The melting point of BP-BP Polymer in differential scanning calorimetry was 337.4 ℃ , which was 151.6 ℃ higher than that of DE-DE Polymer, and the glass transition temperature in dynamic mechanical analysis was 135.5 ℃ , which was 41.4 ℃ higher than that of DE-DE Polymer. In addition, the thermal conductivity of BP-BP Polymer was 0.36 W / m·K, which was higher than that of DE-DE Polymer.