Benzoxazine-based resins afford non-toxic, environmentally friendly plastics that possess enhanced mechanical and thermal properties, which are desirable for creating safe and reliable parts in the aerospace industry. High temperature resins are often made from highly crosslinked polymers which complement the thermal properties of benzoxazine-based materials. Resins bearing phenylacetylide units have proven useful in the synthesis of high temperature resins. By attaching phenylacetylide substituents to a benzoxazine molecule, we hypothesize that we can create a highly crosslinked phenylacetylene-based benzoxazine resin that will consolidate the properties of both classes of materials. The structure and purity of the monomer, determined by NMR and IR, will be presented. The resin will be made into films for characterization. Primary thermal ring-opening polymerization and secondary crosslinking reactions of the phenylacetylide-based benzoxazine will be studied via DSC and will also be presented. TGA and TGA-FTIR studies for thermal stability will also be discussed. The tensile mechanical properties of the fully cured films, including modulus, tensile strength, and toughness, are also studied.

High-temperature polybenzoaxazine resins for aerospace applications

2019 Spring National Meeting

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.