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首页> 外文期刊>Journal of Applied Polymer Science >Glycidyl methacrylate grafted natural rubber: Synthesis, characterization, and mechanical property
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Glycidyl methacrylate grafted natural rubber: Synthesis, characterization, and mechanical property

机译：甲基丙烯酸缩水甘油酯接枝的天然橡胶：合成，表征和力学性能

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摘要

Glycidyl methacrylate (GMA) was grafted onto natural rubber (NR) using emulsion polymerization method. The structures of copolymers were characterized by 1H nuclear magnetic resonance (~1H-NMR), solid state ~(13)C-NMR spectroscopy, and Fourier transform infrared spectrometer (FTIR). The %grafting obtained from the gravimetric method and the absorbance ratio were compared. Effects of reaction temperature, GMA content, and reaction time on %grafting, grafting efficiency, and %conversion of GMA monomer were determined. Effect of %grafting on mechanical properties of the graft copolymer was studied. Experimental result showed that the appropriate reaction time was 8 h at a reaction temperature of 30°C. Moreover, tensile strength and modulus of the graft copolymer increased with increasing %grafting. However, elongation at break of the graft copolymer decreased with increasing %grafting.
机译：使用乳液聚合法将甲基丙烯酸缩水甘油酯（GMA）接枝到天然橡胶（NR）上。共聚物的结构通过1H核磁共振（〜1H-NMR），固态〜（13）C-NMR光谱和傅里叶变换红外光谱仪（FTIR）进行表征。比较了通过重量分析法获得的接枝率和吸光度比。确定反应温度，GMA含量和反应时间对GMA单体的％接枝，接枝效率和％转化率的影响。研究了％接枝对接枝共聚物力学性能的影响。实验结果表明，在30℃的反应温度下，合适的反应时间为8h。而且，接枝共聚物的抗张强度和模量随着接枝％的增加而增加。但是，接枝共聚物的断裂伸长率随着接枝％的增加而降低。

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