The effect of functionalized styrene‐butadiene rubber (SBR) with glycidyl methacrylate (GMA) monomers, in the presence of styrene comonomers (SBR‐g‐GMA‐co‐St) as a compatibilizer on physical‐mechanical, morphological, and swelling behavior of SBR/nitrile butadiene rubber (NBR) blends were studied. It was proved that the compatibilizer made through dicumyl peroxide‐induced reaction which possessed 1.5 phr GMA in addition to 1.5 phr styrene comonomers showed higher efficiency of grafting. Possible in situ reactions between SBR‐g‐GMA‐co‐St and NBR component also were evaluated with an attenuated total reflectance mode of Fourier‐transform infrared spectroscopy. SBR/NBR blend containing compatibilizer with a middle value of grafting demonstrated the most reactions between components. Dynamic mechanical thermal analysis results illustrated that the presence of SBR‐g‐GMA‐co‐St caused a significant improvement in compatibility of two components. This was verified with the scanning electron microscope pictures in which a smoother surface of the sample was clear. The enhancement in microstructure led to an increase in tensile strength, elongation at break, and storage modulus. Moreover, the increase in the intermolecular cross‐links and made interactions considerably affected blends' swelling behavior in both hydrocarbon solvents (carbon tetrachloride and chloroform).

中文翻译：

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甲基丙烯酸缩水甘油酯和苯乙烯共聚单体对SBR / NBR共混物相容性，物理机械性能和溶胀行为的影响

在苯乙烯共聚单体（SBR-g-GMA-co-St）作为增容剂的情况下，功能化的苯乙烯-丁二烯橡胶（SBR）与甲基丙烯酸缩水甘油酯（GMA）单体对橡胶的物理力学，形态和溶胀行为的影响研究了SBR /丁腈橡胶（NBR）混合物。事实证明，由过氧化二枯基引发的反应制得的增容剂除具有1.5 phr苯乙烯共聚单体外，还具有1.5 phr GMA。还使用傅里叶变换红外光谱的衰减全反射模式评估了SBR-g-GMA-Co-St和NBR组分之间可能的原位反应。含有增容剂的SBR / NBR共混物具有中等的接枝值，表明组分之间的反应最多。动态机械热分析结果表明，SBR-g-GMA-co-St的存在显着改善了两个组件的兼容性。用扫描电子显微镜照片证实了这一点，其中样品的光滑表面是透明的。微观结构的增强导致抗张强度，断裂伸长率和储能模量的增加。此外，分子间交联的增加和相互作用大大影响了混合物在两种烃溶剂（四氯化碳和氯仿）中的溶胀行为。微观结构的增强导致抗张强度，断裂伸长率和储能模量的增加。此外，分子间交联的增加和相互作用大大影响了混合物在两种烃溶剂（四氯化碳和氯仿）中的溶胀行为。微观结构的增强导致抗张强度，断裂伸长率和储能模量的增加。此外，分子间交联的增加和相互作用大大影响了两种烃溶剂（四氯化碳和氯仿）中共混物的溶胀行为。