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首页> 外文期刊>The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical >Thermodynamics and Kinetics in Micellar Media. Reaction of the Hydroxide Ion with 1,3,5-Trinitrobenzene in Aqueous Solutions of a Neutral Nonionic Surfactant. Effect of the Concentration of Background Electrolyte
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Thermodynamics and Kinetics in Micellar Media. Reaction of the Hydroxide Ion with 1,3,5-Trinitrobenzene in Aqueous Solutions of a Neutral Nonionic Surfactant. Effect of the Concentration of Background Electrolyte

机译:胶束介质中的热力学和动力学。氢氧化物离子与1,3,5-三硝基苯在中性非离子表面活性剂的水溶液中的反应。背景电解质浓度的影响

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The use of a neutral surfactant (Brij 35) allows us to investigate its influence upon the kinetics of the reaction between a neutral substrate and a charged reactant. The thermodynamic description of a micellar system can be obtained by introducing a variable of area in the expression of the internal energy. Thus, the content of micellar solutions is separated into two components: a volume content associated with dimension 3, and an area content associated with dimension 2. The volume is an extensive parameter and a homogeneous function of degree unity of its content, but the area is not necessarily an extensive function and does not vary linearly with content. In this way, we can describe the evolutionn of the behavior of micellar solutions when the concentration of surfactant increases. We introduce the notion of "micellar catalysis" in terms of an increase of the exchange rate at equilibrium, ~mv_0, for the studied reaction. The formal separation of the content of the solution into two components with different dimensions leads us to suppose a difference in reactivity. The exchange rate associated with the content of dimension 2 equals 40 times the one associated with the content of dimension 3.
机译:使用中性表面活性剂(Brij 35)使我们能够研究其对中性底物与带电反应物之间反应动力学的影响。胶束系统的热力学描述可以通过在内部能量的表达中引入面积变量来获得。因此,胶束溶液的含量分为两个部分:与尺寸3相关的体积含量和与尺寸2相关的面积含量。体积是其内容的统一参数和度统一的齐次函数,但面积不一定是扩展功能,并且不会随内容线性变化。这样,我们可以描述表面活性剂浓度增加时胶束溶液行为的演变。我们引入“胶束催化”的概念,即增加所研究反应在平衡时的交换速率〜mv_0。将溶液内容物正式分为两个不同尺寸的组分,这使我们假设反应性有所不同。与维度2的内容相关联的汇率等于与维度3的内容相关联的汇率的40倍。

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