Synthesis and Light-Stabilizing Ability of a Series of Hindered Piperidine Derivatives
作者:Wei Chen、Ping An、Yan-Xue Chen、Yang Li、Xi-Long Yan、Li-Gong Chen
DOI:10.1080/00397911.2010.540693
日期:2012.5.15
Abstract A series of novel hindered amine light stabilizers (HALSs) containing four hindered amine groups were designed and synthesized from diamines, methyl acrylate, and 2,2,6,6-pentamethyl-piperidine-4-ol through Michael addition and transesterification. The structures of target compounds were confirmed by 1H NMR and 13C NMR. Two of them were chosen to be evaluated for their antioxidation and anti-aging
摘要 以二胺、丙烯酸甲酯和2,2,6,6-五甲基-哌啶-4-醇为原料,通过迈克尔加成和酯交换反应,设计并合成了一系列含有四个受阻胺基团的新型受阻胺光稳定剂(HALS)。目标化合物的结构经1H NMR和13C NMR确证。选择其中两种用于评估其抗氧化和抗老化性能,并与聚丙烯 (PP) 和聚乙烯 (PE) 中的 HALS tinuvin 770、chimassorb 944、tinuvin 622、抗氧化剂 irganox B215 和 irganox B225 进行比较,并得出结果表明它们的抗氧化性和光稳定效率优于 HALS tinuvin 770、chimassorb 944、rinuvin 622 和抗氧化剂 irganox B215。图形概要