INTERACTION OF DIMETHYLDODECYLAMINE OXIDE WITH SODIUM DODECYLBENZENESULFONATE IN DILUTE SOLUTION
INTERACTION OF DIMETHYLDODECYLAMINE OXIDE WITH SODIUM DODECYLBENZENESULFONATE IN DILUTE SOLUTION
复制标题
二甲基十二烷基胺氧化物与十二烷基苯磺酸钠在稀溶液中的相互作用
DOI：
10.1021/j100795a012
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发表时间：
1963
期刊：
影响因子：
--
通讯作者：
R. Zimmerer
中科院分区：
文献类型：
--
作者：
D. G. Kolp;R. Laughlin;F. P. Krause;R. Zimmerer
通过对pH值、透光率和扩散系数的研究，发现二甲基十二烷胺氧化物和十二烷基苯磺酸钠在水溶液中以下列方式相互作用：（1）在临界胶束浓度以下，氧化胺的质子化形式和十二烷基苯磺酸钠发生复分解沉淀。质子化形式的这种消耗导致额外的氧化胺的质子化，这导致pH值的增加。发现沉淀物的pH为10.8。(2)高于临界胶束浓度，混合胶束形成的现象被添加到复分解相互作用。当DBS与DDAO的摩尔比为2：3时，体系的临界胶束浓度为0.706 × 10 ~（-3）mol/l。(DBS+ DDAO），低于任一表面活性剂单独的临界胶束浓度。胶束中DBS：DDAO的摩尔比约为1：2。它的结论是，只有混合胶束存在于系统中。
By studies of pH, light transmission, and diffusion coefficient, dimethyldodecylamine oxide and sodium dodecyl-benzenesulfonate have been found to interact in aqueous solution in the following ways:(1) Below the critical micelle concentration of the mixture, the protonated form of the amine oxide and the dodecylbenzenesulfonate precipitate metathetically. This consumption of the protonated form results in protonation of additional amine oxide, which resultsin an increase in pH. The pl£ sp of theprecipitate is found to be 10.8.(2) Above the critical micelle concentration, the phenomenon of mixed micelle formation is added to the metathetical interaction. The critical micelle concentration of the system containing a 2: 3 mole ratio of DBS to DDAO is 0.706 X 10-3 mole/1.(DBS+ DDAO), lower than the critical micelle concentration of either of the surfactants alone. The molar ratio in the micelles is about 1: 2 DBS: DDAO. It is concluded that only mixed micelles are present in the system.