Abstract: A phenyl 2-naphthylamine antioxidant was synthesized via Michael addition and amidation reactions with parabromoaniline, lauryl amine and 2-naphthylamine as raw materials, and its chemical structure was confirmed by 1H- and 13C-NMR spectroscopy and liquid chromatographymass spectrometry. Thermal analysis results indicated that this phenyl 2-naphthylamine antioxidant had a high thermal stability. The oxidation induction time for a polyethylene compound containing the phenyl 2-naphthylamine antioxidant was 157.53 min and the carbonyl index was 0.25, suggesting that the phenyl 2-naphthylamine antioxidant had an excellent stabilizing efficiency.

Key words: N-(4-bromine phenyl) acrylamide, phenyl 2-naphthylamine, antioxidant, oxidation induction time, carbonyl index