A solid‐phase preparation method is applied to the synthesis of a novel supported rubber antioxidant, silica–supported 2,2′‐methylenebis(6‐tert‐butyl‐4‐methyl‐phenol) (SiO₂‐2246), by directly reacting 2,2′‐methylenebis (6‐tert‐butyl‐4‐methyl‐phenol)(antioxidant 2246) with silica. FTIR, Raman spectroscopy and TGA confirm that the antioxidant 2246 is chemically bonded on the surface of the silica particles. The SEM observation shows that the SiO₂‐2246 is homogeneously dispersed in the styrene‐butadiene rubber (SBR) matrix. The results of the apparent activation energy and the attenuated total reflectance infrared spectrometry indicate that the antioxidative efficiency of the SiO₂‐2246 in SBR is superior to the corresponding low‐molecular‐weight 2246. The thermal oxidative stability of the SBR/SiO₂‐2246 composites is much higher than that of the SBR/SiO₂/2246 composites by comparing their mechanical properties retentions and crosslinking densities. Additionally, the advantages of SiO₂‐2246 also include low migration, low volatility, and low pollution. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43014.

中文翻译：

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二氧化硅负载的2,2'-亚甲基双（6-叔丁基-4-甲基苯酚）的固相制备方法及其在丁苯橡胶中的抗氧化性能

固相的制备方法适用于新的支持的橡胶抗氧化剂的合成，二氧化硅负载的2,2'-亚甲基双（6-叔丁基-4-甲基-苯酚）（SIO ₂ -2246），通过直接反应2,2'-亚甲基双（6-叔丁基-4-甲基苯酚）（抗氧化剂2246）与二氧化硅。FTIR，拉曼光谱法和TGA证实抗氧化剂2246化学键合在二氧化硅颗粒的表面上。SEM观察显示，在SiO ₂ -2246被均匀地分散在苯乙烯-丁二烯橡胶（SBR）矩阵。表观活化能和衰减全反射红外光谱的结果表明，SiO ₂的抗氧化效率-2246在SBR优于相应的低分子量2246的SBR /二氧化硅的热氧化稳定性_2个-2246复合材料比SBR /二氧化硅的高得多的₂ /2246复合物通过比较它们的机械性能保持率和交联密度。此外，二氧化硅的优点₂ -2246还包括低迁移，低挥发性和低的污染。©2015 Wiley Periodicals，Inc. J. Appl。Polym。科学 2016，133，43014。