Abstract
Main-chain benzoxazine has great potential for a number of fields, particularly fiber chemistry, due to its flexibility in molecular design and viscosity. It is expected that its thermal properties can be improved by blending with a low molecular weight benzoxazine possessing a functional group with excellent thermal properties. In this study, two types of bisphenol-A-based main-chain benzoxazine were synthesized, using aliphatic and aromatic diamine and o-aminobenzonitrile benzoxazine, then blended. Their thermal properties were investigated through FT-IR, DSC, and TGA. The copolybenzoxazine that comprised main-chain benzoxazine with aromatic diamine and o-aminobenzonitrile benzoxazine showed improved thermal stability over a low-temperature range and demonstrated a synergistic effect on char yield.
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The present research was supported by the research fund of Dankook University in 2023.
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Jang, M., Park, J.K. & Kim, H. A Study of the Thermal Properties of Main-Chain Polybenzoxazines Copolymerized with Nitrile-Benzoxazine. Fibers Polym 24, 4111–4119 (2023). https://doi.org/10.1007/s12221-023-00393-4
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DOI: https://doi.org/10.1007/s12221-023-00393-4