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在２５～４０℃区间用分光光度法在碱性介质中研究了二（过碘酸根）合铜（Ⅲ）酸根配离子（ＤＰＣ）氧化二乙醇胺（ＤＥＡ）的反应动力学。结果表明，反应对ＤＰＣ为一级，对二乙醇胺是１．７～１．９级。准一级速率常数ｋｏｂｓ随［ＯＨ－］增大而增大，随［ＩＯ－４］ｅｘ（外加的ＩＯ－４离子浓度）的增加而减小，也随［ＫＮＯ３］增大而减小，有负盐效应。在氮气保护下，反应体系能引发丙烯腈聚合。提出了含有自由基过程的反应机理。经此导出的速率方程圆满地解释了全部实验事实，并计算出速控步骤的速率常数及相应的活化参数
The kinetics of the oxidation of diethanolamine (DEA) by bis (peroxodisulfate) copper (III) acid complex ion (DPC) was studied spectrophotometrically in alkaline medium at 25-40 ℃. The results showed that the reaction of DPC for the first grade, diethanolamine is 1.7 to 1.9. The quasi-first-order rate constant kobs increases with the increase of [OH-], decreases with the increase of [IO-4] ex (plus IO-4 ion concentration) and also decreases with the increase of [KNO3] Have negative salt effect. Under the protection of nitrogen, the reaction system can initiate acrylonitrile polymerization. The reaction mechanism of containing free radical is proposed. The derived rate equation satisfactorily explains all the experimental facts and calculates the rate constant of the quick control step and the corresponding activation parameters