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首页> 外文期刊>Journal of Applied Polymer Science >Graft mechanism of acrylonitrile onto starch by potassium permanganate
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Graft mechanism of acrylonitrile onto starch by potassium permanganate

机译：高锰酸钾将丙烯腈接枝淀粉的机理

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摘要

The graft mechanism of acrylonitrile (AN) onto starch under the initiation of potassium permanganate was investigated. The relationships of the grafting rate and the concentrations of potassium permanganate, AN, and backbone starch, as well as the reaction temperature, were established. On this basis, the equation for the rate of the graft copolymerization was derived, and the apparent activation energy for the graft copolymerization was obtained. Through the study of the oxidation reaction of starch with manganic ions, the valence changes of manganic ions during the graft copolymerization, and the grafting ability of different starch derivatives, together with electron spin resonance analysis, the grafting mechanism for the graft copolymerization of AN onto starch under the initiation of potassium permanganate was determined. (C) 2003 Wiley Periodicals, Inc. [References: 32]
机译：研究了高锰酸钾引发丙烯腈（AN）接枝淀粉的机理。建立了接枝率与高锰酸钾，AN和主链淀粉浓度以及反应温度之间的关系。在此基础上，推导了接枝共聚速率的方程式，得到了接枝共聚的表观活化能。通过研究淀粉与锰离子的氧化反应，接枝共聚过程中锰离子的化合价变化以及不同淀粉衍生物的接枝能力，并结合电子自旋共振分析，研究了AN在淀粉上接枝共聚的接枝机理。测定高锰酸钾引发下的淀粉。 （C）2003 Wiley Periodicals，Inc. [参考：32]

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