由香草醛、百里香酚和香芹酚合成生物基聚苯并恶嗪杂化物及其表征

Erdeger Merve, Gungor Fusun Seyma

Chemistry Department, Istanbul Technical University, Faculty of Science and Letters, Maslak, Sarıyer, Istanbul, 34469, Turkiye.

Chem Asian J. 2025 Jun;20(11):e202401777. doi: 10.1002/asia.202401777. Epub 2025 Apr 30.

Recently, the fast advancement of bio-based polymers has boosted the interest in green and sustainable materials. In this context, polybenzoxazine-derived renewable resources have been widely investigated due to their environmental benefits and high mechanical and thermal properties. This study focused on synthesizing hybrid benzoxazines from bio-phenolic compounds- vanillin, thymol, and carvacrol- combined with Jeffamine D-230 and paraformaldehyde. The chemical structures of hybrid benzoxazines (Van-JD, Thy-JD, and Car-JD) were characterized by Fourier transform infrared spectroscopy (FT-IR) and nuclear magnetic resonance spectroscopy (H NMR and C NMR). Furthermore, the curing behavior and thermal stability of synthesized bio-phenolic-based benzoxazines were studied using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA).

近年来，生物基聚合物的快速发展激发了人们对绿色可持续材料的兴趣。在此背景下，源自聚苯并恶嗪的可再生资源因其环境效益以及高机械性能和热性能而受到广泛研究。本研究聚焦于由生物酚类化合物——香草醛、百里香酚和香芹酚——与Jeffamine D-230和多聚甲醛合成杂化苯并恶嗪。采用傅里叶变换红外光谱（FT-IR）和核磁共振光谱（H NMR和C NMR）对杂化苯并恶嗪（Van-JD、Thy-JD和Car-JD）的化学结构进行了表征。此外，利用差示扫描量热法（DSC）和热重分析（TGA）研究了合成的生物酚基苯并恶嗪的固化行为和热稳定性。