论文部分内容阅读
氮丙啶化合物由于含氮三元环的热力学不稳定性而具有很高的反应性,易发生亲核加成而开环,因此,多官能氮丙啶化合物可用做液体端羧基聚酯或聚烯烃的交联剂或固化剂。关于氮丙啶类固化剂前人曾进行过广泛的研究,但多数该类固化剂都不理想,或因自身稳定性差,或因选择性不高而不能满足要求,这就需要改良固化剂分子的结构。我们设计、合成了一种脂肪族氮丙啶化合物,具有如下结构:
The aziridine compounds are highly reactive due to the thermodynamic instability of the nitrogen-containing three-membered ring and are prone to nucleophilic addition to ring-opening. Therefore, the polyfunctional aziridine compounds can be used as liquid carboxyl-terminated polyesters or poly Crosslinker or hardener for olefins. Aziridine curing agents have been extensively studied in the past, but most of these curing agents are not ideal, or because of their poor stability, or due to low selectivity and can not meet the requirements, which requires improved curing agent molecules Structure. We designed and synthesized an aliphatic aziridine compound with the following structure: