受阻酚的结构对受阻酚抗氧剂抗氧活性的影响  

Effect of the Structure of Hindered Phenols on Hindered Phenolic Antioxidants'Antioxygen Activity

作　　者：何露露 何敏[1] 樊峤 杨继飞 刘玉飞[1,2] HE Lulu;HE Min;FAN Qiao;YANG Jifei;LIU Yufei(School of Materials and Metallurgy,Guizhou University,Guiyang 550025,China;National Engineering Technology Research Center for Composite Modified Polymer Materials,Guiyang 550014,China)

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550025 [2]国家复合改性聚合物材料工程技术研究中心,贵州贵阳550014

出　　处：《塑料工业》2023年第7期16-23,43,共9页China Plastics Industry

基　　金：国家自然科学基金项目(51663006、52163009)。

摘　　要：高分子材料易受热、光、紫外等影响,发生断裂,产生一系列自由基,影响材料的性能。受阻酚抗氧剂能提供氢原子捕获这些自由基,提高材料的使用性能。但不同的受阻酚结构会对羟基的脱氢产生不同影响。本文概述了受阻酚抗氧剂的羟基数目、分子量、取代基结构、协同与对抗效果、生成自由基的稳定性以及桥联基结构对其抗氧活性的影响,并对今后受阻酚的发展前景做出展望。Polymer materials were easily affected by heat,light,ultraviolet,and other factors,leading to fracture and the generation of a series of free radicals,which affected the performance of the materials.Hindered phenolic antioxidants could provide hydrogen atoms to capture these free radicals,improving the usability of materials.But different hindered phenolic structures had different effects on the dehydrogenation of hydroxyl groups.In this paper,the number of hydroxyl groups,molecular weight,substituent structure,synergistic and antagonistic effects,the stability of free radicals and the influence of bridged group structure on the antioxidant activity of hindered phenols were summarized,and the development prospect of hindered phenols in the future was prospected.

关 键 词：受阻酚 抗氧活性 桥联基 抗氧机理 

分 类 号：TQ314.249[化学工程—高聚物工业]