| abstract |
A method of obtaining modified phthalonitriles comprising organophosphorus fragments, binding agents based thereon, and products produced with the use thereof, can be used in a variety of fields—from aircraft and automobile manufacturing to producing polymer composite materials. The method makes it possible to produce phthalonitrile monomers comprising organophosphorus fragments from simpler and cheaper reagents and to obtain them as individual substances, simplifying the process of synthesis, reducing the glass transition temperature of monomers and increasing the thermal oxidation stability of hardened polymers. The phthalonitrile monomer modified with organophosphorus fragments is characterized by the following general formula: n n n n n n n n n n wherein R is a radical selected from the group comprising aryl, alkyl, aryloxy or alkyloxy substituents; and X is a divalent aryl substituent selected from a group comprising phenylenes and naphthylenes. Also disclosed is a method of obtaining the modified phthalonitrile monomer, a binder, and a prepreg based on the same. |