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Information × Registration Number 0224U033327, (0123U102811) , R & D reports Title Synthesis of aromatic tetranitriles as a universal platform for heat-resistant polymers and composites popup.stage_title Одержання полімерів на основі ароматичних Тетранітрилів та виготовлення зразків Композиційних матеріалів на одержаних зв’язуючих Head Volochnyuk Dmytro M., д.х.н. Registration Date 25-12-2024 Organization Institute of Organic Chemistry NAS of Ukraine popup.description1 The project is aimed at significantly expanding the possibilities of creating and using polymer composites with extreme properties by developing a universal platform for binders and a new approach to aromatic nitriles as building blocks for heat-resistant polymers that combine high working temperature, high mechanical strength, and resistance to thermo-oxidative destruction. Currently, Ukrainian researchers and material developers do not have reliable access to binders that provide the creation of polymer composites with a long-term heat resistance limit of 350-450 °C for the aerospace industry, energy, and communication systems. The research plan involves the development of protocols for the synthesis of aromatic tetranitriles, adapted for potential semi-industrial scaling. An economically feasible approach to the synthesis of oligomeric systems, doped with Si-B-P nanoclusters, will be developed. Also, a previously unknown mechanism of partial deactivation of reactive chains of thermo-oxidative destruction through up-conversion energy dissipation of migrating radicals will be studied. Based on the synthesized binders, samples of heat-resistant composites with fibrous and dispersed fillers will be obtained and their characteristics studied popup.description2  This report presents the synthesis and modification of aromatic phthalonitrile-based monomers, oligomers, and polymers designed for high-temperature, high-performance composite materials. Scalable protocols were developed to produce monomers in multigram quantities. Maintaining suitable viscosity (200–400 Pa·s) at temperatures up to 200 °C, enabled fiber-reinforced and filler-based composites. Designing the protocol for incorporating Si–B–P nanoparticles into oligomers provided the significant improvements in thermal stability (15–20% higher) of the final polymers. Systematic studies established relationships between polymerization depth, heterocyclic fragment ratios (triazine, indole, phthalocyanine), and resulting mechanical and thermal properties. Product Description popup.authors Bychykhin Viacheslav M. Kukharenko Svitlana А. Pashchenko Yevhen O. Rozhenko Oleksandr B. Riabukhin Serhii V. Savchenko Denys O. Skorohod Serhii V. popup.nrat_date 2024-12-25 Close