Title: High-Char Yield Properties of Smart-Functionalized Polybenzoxazines

Authors: William C. Guzman, Jeffrey S. Wiggins

DOI: 10.33599/nasampe/s.22.0710

Abstract: Benzoxazines have become a well-established polymer matrix chemistry for high-performance carbon fiber reinforced composites known for their high glass transition temperatures (Tg), high char yields, and flame retardant properties. A key feature of benzoxazines is their modularity leading to copious molecular design variations, one of which being smart functionalities. Smart functionalities, such as ortho-hydroxy imide functionalities, have the ability to introduce heteroatoms, such as benzoxazoles, into the benzoxazine network leading to higher performance benzoxazine networks. Polybenzoxazoles are a class of high-performance polymers that are known for their high strength, modulus, and thermal stability. However, polybenzoxazoles suffer from poor processability wherein most cases the melting temperatures of polybenzoxazoles are commensurate with the degradation temperatures, limiting their applications. By incorporating smart functionalities into benzoxazine monomers the high-performance properties, such as enhanced char yield, of benzoxazoles can be incorporated into benzoxazines networks, while maintaining good processability.

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Conference: SAMPE 2022

Publication Date: 2022/05/23

SKU: TP22-0000000710

Pages: 11

Price: $22.00