Abstract In this work, the effect of pyrogallol which served as a phenolic nucleophile on the ring-opening polymerization and curing kinetics of the eugenol/stearylamine-based benzoxazine (E-s) was examined with phenol as a contrast. The differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FTIR) results revealed that pyrogallol demonstrated higher ability to promote the ring-opening polymerization of E-s compared to phenol. The exothermal peak temperature of E-s was reduced from 254 °C to 168 °C with the addition of pyrogallol. Moreover, the curing kinetics of the E-s and pyrogallol mixture (E-s/py) were studied with Kissinger, Ozawa, Flynn-Wall-Ozawa and Friedman methods. The results indicated that the apparent activation energies (Ea) of E-s decreased with the addition of pyrogallol. In addition, the polymerization process of E-s/py followed the autocatalytic kinetic model based on Friedman method.

中文翻译：

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邻苯三酚对全生物基苯并恶嗪开环聚合及固化动力学的影响

摘要 在这项工作中，作为酚类亲核试剂的连苯三酚对丁子香酚/硬脂胺基苯并恶嗪 (Es) 的开环聚合和固化动力学的影响与苯酚作为对比进行了研究。差示扫描量热法 (DSC) 和傅里叶变换红外光谱 (FTIR) 结果表明，与苯酚相比，连苯三酚表现出更高的促进 Es 开环聚合的能力。添加连苯三酚后，Es 的放热峰值温度从 254 °C 降低到 168 °C。此外，使用 Kissinger、Ozawa、Flynn-Wall-Ozawa 和 Friedman 方法研究了 Es 和连苯三酚混合物 (Es/py) 的固化动力学。结果表明，随着连苯三酚的加入，Es 的表观活化能（Ea）降低。此外，