This study focuses on the synthesis of new liquid aromatic bismaleimide monomers in order to improve self-curing on demand (SCOD) systems previously based on aliphatic bismaleimides. These SCOD systems are based on Diels-Alder (DA)/retro-DA reactions. The syntheses of new different aromatic bismaleimides with ester and amide bonds are presented. These maleimides have been protected using DA reaction and characterized by ¹H NMR analysis to determine protection rate and diastereomer ratios. The retro-DA reactions of both aromatic and aliphatic DA adducts in presence of thiol molecules were studied. Kinetic analysis was monitored by ¹H NMR and compared to model study. Finally, both aromatic and aliphatic bismaleimides-based polymers were synthesized with 2-mercaptoethyl ether and thermal properties of polymers were compared. The glass transition temperature values ranged from −20 °C to 14 °C and very good thermal stabilities were observed (up to 300 °C).

这项研究集中于合成新型液态芳族双马来酰亚胺单体，以改善以前基于脂族双马来酰亚胺的按需自固化（SCOD）系统。这些SCOD系统基于Diels-Alder（DA）/ retro-DA反应。介绍了具有酯键和酰胺键的新的不同芳族双马来酰亚胺的合成。这些马来酰亚胺已使用DA反应进行了保护，并通过¹ H NMR分析确定了保护率和非对映异构体比率。研究了在硫醇分子存在下芳族和脂族DA加合物的逆DA反应。动力学分析由¹监控1 H NMR和与模型研究比较。最后，用2-巯基乙基醚合成了芳香族和脂肪族双马来酰亚胺基聚合物，并比较了聚合物的热性能。玻璃化转变温度范围为-20°C至14°C，观察到非常好的热稳定性（最高300°C）。