ИСТИНА

Heat-resistant fiber reinforced plastics are in a high demand of the aerospace industry. Phthalonitrile resins are known as matrices the most stable at elevated temperature1. Recently, phosphate-bridged phthalonitrile resin with high elasticity modulus and wide processing window were obtained in our research group2. A new tri-functional phthalonitrile monomer tris(3-(3,4-dicyanophenoxy)phenyl) phosphate (TPP) was first synthesized and characterized with the intent of increasing the cross-linking rate of phthalonitrile resins.