Abstract
A series of novel nitroxyl radical hindered-amine light stabilizer monomers were designed and synthesized from 2,2,6,6-tetramethylpiperidine-N-oxyl-4-ol, cyanuric chloride, allylamine, and 2-hydroxyphenylbenzotriazole derivatives. Structures of the new stabilizers were confirmed by 1H NMR, 13C NMR, FT-IR, ESI-HRMS, and element analysis. The synthesized compounds 5a–f were evaluated for their antioxidant and antiaging properties, and a significant stabilizing effect against photodegradation was found.
摘要
设计并合成了一系列新型的亚硝基自由基受阻胺光稳定剂单体,从2,2,6,6-四甲基哌啶-N-氧基-4-醇,三聚氰胺氯化物,烯丙胺和2-羟基苯基苯并三唑衍生物中合成。通过1H NMR,13C NMR,FT-IR,ESI-HRMS和元素分析确认了新稳定剂的结构。合成的化合物5a-f被评估其抗氧化和抗衰老性能,发现对光降解有显著的稳定效果。