Abstract Two novel quinoxaline-based maleimide monomers, 2,3-diphenyl-6-maleimido-quinoxaline (MQMI) and 2,3-di(2-maleimido)phenyl-quinoxaline (BQMI), were successfully synthesized and characterized. Their structure was confirmed by 1H nuclear magnetic resonance (1HNMR) and Fourier transforms infrared (FTIR). The curing behavior was investigated by the rheological method and Differential scanning calorimetry (DSC). Starink method was used for the curing kinetics analysis of MQMI and BQMI monomers. The curing temperature and the apparent activation energy of BQMI were lower than that of MQMI, which indicated that the maleimide group location could affect its curing behavior. The thermal stabilities of the cured quinoxaline-based maleimide resins were detected by Thermogravimetric analysis (TGA), which implied that their decomposition temperatures were comparable with Poly(4,4’-bismaleimido diphenylmethane) (PBMDPM). However, the char yields (Yc) of PMQMI and PBQMI reached 54.1% and 57.3%, respectively, which were much higher than recorded values of PBMDPM.

中文翻译：

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两种新型喹喔啉基单马来酰亚胺和双马来酰亚胺的合成、固化动力学和热性能

摘要 成功合成并表征了两种新型喹喔啉基马来酰亚胺单体2,3-二苯基-6-马来酰亚胺基喹喔啉(MQMI)和2,3-二(2-马来酰亚胺)苯基喹喔啉(BQMI)。它们的结构由 1H 核磁共振 (1HNMR) 和傅里叶变换红外 (FTIR) 证实。通过流变学方法和差示扫描量热法(DSC)研究固化行为。Starink 方法用于 MQMI 和 BQMI 单体的固化动力学分析。BQMI的固化温度和表观活化能均低于MQMI，说明马来酰亚胺基团的位置会影响其固化行为。通过热重分析（TGA）检测固化的喹喔啉基马来酰亚胺树脂的热稳定性，这意味着它们的分解温度与聚（4,4'-双马来酰亚胺二苯甲烷）（PBMDPM）相当。然而，PMQMI 和 PBQMI 的炭产率 (Yc) 分别达到了 54.1% 和 57.3%，远高于 PBMDPM 的记录值。