复合型受阻酚抗氧剂的制备及清除DPPH·活性研究

doi:10.19491/j.issn.1001-9278.2019.12.013

中国塑料 ›› 2019, Vol. 33 ›› Issue (12): 69-72.DOI: 10.19491/j.issn.1001-9278.2019.12.013

复合型受阻酚抗氧剂的制备及清除DPPH·活性研究

计海峰，宋丹阳，闫玉双，王卫东^*

吉林化工学院石油化工学院

收稿日期:2019-07-29 修回日期:2019-08-30 出版日期:2019-12-26 发布日期:2020-01-17

Synthesis of Complex Hindered Phenol Antioxidant and Its Scavenging Activity for DPPH Free-Radicals

JI Haifeng, SONG Danyang, YAN Yushuang, WANG Weidong*

Institute of Petrochemical Engineering, Jilin Institute of Chemical Technology

Received:2019-07-29 Revised:2019-08-30 Online:2019-12-26 Published:2020-01-17

摘要/Abstract

摘要： 以二苯基氯化磷和2,2′亚甲基双(4甲基6叔丁基苯酚)为原料，合成具有亚磷酸酯及受阻酚结构的复合型抗氧剂2(2羟基3叔丁基5甲基苄基)4甲基6叔丁基苯基二苯基亚磷酸酯，产率为65.12 %，产物经FT-IR表征，符合理论设计构型。将产物与商用抗氧剂2,6二叔丁基4甲基苯酚(BHT)进行热稳定性及DPPH自由基清除能力的对比测试，结果表明，产物较抗氧剂BHT分子量更高，热稳定性更好；同时其对DPPH自由基具有良好的清除效果，其抗氧化能力强于抗氧剂BHT。

关键词: 受阻酚, 亚磷酸酯, 复合型抗氧剂, 自由基

Abstract: In this work, a complex hindered phenol antioxidant, (2-Hydroxy-3-tert-butyl-5-methylbenzyl)-4-methyl-6-tert-butylphenyl-diphenylphosphite］,was synthesized by using diphenyl-phosphonium chloride and 2,2′-methylenebis-(4-methyl-6-tert-butylphenol)as raw materials, and a yield of 65.12 % was achieved from the synthetic process. The molecular structure of the obtained product was characterized by FTIR and then confirmed to be in accordance with the configuration design. A comparative investigation on the thermal stability and scavenging capability for DPPH free radical was carried out between the synthesized product and a commercial antioxidant, 2,6-di-tert-butyl-4-methylphenol (BHT). The results indicated that the synthesized product had a higher molecular weight and better thermal stability than BHT, and it exhibited a good scavenging effect on DPPH free radical, indicating a better antioxidant capability compared to BHT.

Key words: hindered phenol, phosphite, complexantioxidant;free radical

中图分类号:

TQ314.249

计海峰, 宋丹阳, 闫玉双, 王卫东. 复合型受阻酚抗氧剂的制备及清除DPPH·活性研究[J]. 中国塑料, 2019, 33(12): 69-72.

JI Haifeng, SONG Danyang, YAN Yushuang, WANG Weidong. Synthesis of Complex Hindered Phenol Antioxidant and Its Scavenging Activity for DPPH Free-Radicals[J]. China Plastics, 2019, 33(12): 69-72.

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复合型受阻酚抗氧剂的制备及清除DPPH·活性研究

Synthesis of Complex Hindered Phenol Antioxidant and Its Scavenging Activity for DPPH Free-Radicals

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