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首页> 外文期刊>Journal of Applied Polymer Science >Craft copolymerization of methyl acrylate onto sago starch using ceric ammonium nitrate as an initiator
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Craft copolymerization of methyl acrylate onto sago starch using ceric ammonium nitrate as an initiator

机译：以硝酸铈铵为引发剂将丙烯酸甲酯工艺共聚到西米淀粉上

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摘要

The graft copolymerization of methyl acrylate onto sage starch was carried out by a free radical initiating process. The free radicals were produced by the chemical initiation method in which eerie ammonium nitrate was used as an initiator. It was found that the percentages of grafting, grafting efficiency, and rate of grafting were all dependent on the concentration of eerie ammonium nitrate (CAN), methyl acrylate (MA), sage starch (AGU), mineral acid (H2SO4), and reaction temperature and period. The variables affecting the graft copolymerization were thoroughly examined. The optimum yield of grafting was obtained when the concentration of CAN, MA, AGU, and H2SO4 were used at 8.77 x 10(-3), 0.803, 0.135, and 0.175 mol L-1, respectively. The optimum reaction temperature and period were 50 degrees C and 60 min, respectively. The rate of graft polymerization was explored on the basis of experimental results: and reaction mechanism. The evidence of grafted copolymers was investigated by using FTIR. spectroscopy, TG, and DSC analysis. (C) 2000 John Wiley & Sons, Inc. [References: 13]
机译：通过自由基引发方法将丙烯酸甲酯接枝到鼠尾草淀粉上。自由基是通过化学引发方法产生的，其中使用硝酸亚硝酸铵作为引发剂。结果表明，接枝率，接枝效率和接枝率均取决于硝酸怪异铵（CAN），丙烯酸甲酯（MA），鼠尾草淀粉（AGU），无机酸（H2SO4）的浓度。温度和周期。彻底检查了影响接枝共聚的变量。当CAN，MA，AGU和H2SO4的浓度分别为8.77 x 10（-3），0.803、0.135和0.175 mol L-1时，可获得最佳的接枝产率。最佳反应温度和时间分别为50摄氏度和60分钟。在实验结果和反应机理的基础上，探讨了接枝聚合的速率。使用FTIR研究了接枝共聚物的证据。光谱，TG和DSC分析。 （C）2000 John Wiley＆Sons，Inc. [参考：13]

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