Abstract: A novel hinderd phenolic antioxidant 2,6-di-tert-butyl-4-aminophenol was synthesized with 2,6-di-tert-butylphenol as a raw material. When zinc powder was used as a reducing agent, ethanol as a solvent was 100 mL, the amount of calcium chloride solution was 90 mL, the reaction temperature was 80℃ and the reaction time was 8 h, the yield of the product reached 80 % and its melting point was between 112.2 ℃and 113.3 ℃. When loaded in polyolefin resins, the anti-oxidation property of the novel one was equal to antioxidant 1076 and was superior to antioxidant BHT. After 5 times extrusion, the melt flow rate of the two polyolefins containing the novel antioxidant changed a little, and the tensile strength and the elongation at break increased.

Key words: 2, 6-di-tert-butyl-4-aminophenol, oxidation induction time, oxidation resistance property, 2, 6-di-tert-butylphenol, hinderd phenolic antioxidant