Activity coefficients of the infinitely diluted micellar pseudophase are equal to parameters of the second-order Margules function: ln φ_i^∞ = a_ij and ln φ_j^∞ = a_ji. The excess chemical potential of the infinitely diluted micellar pseudophase can be expressed using partial molar enthalpy (h_i^E,∞) and entropy (s_i^E,∞), extrapolated in the infinitely diluted state: μ_i^E,∞ = RT ln φ_i^∞ = h_i^E,∞ – Ts_i^E,∞. The binary mixture of surfactants Triton X100–Brij S20 is not a symmetric binary mixture. In the temperature interval T = (283.15–318.15) K, the activity coefficient for Triton X100 = i in the infinitely diluted micelle pseudophase is ln φ_i^∞ < 0; also, the activity coefficient for Brij S20 = j in the infinitely diluted micellar pseudophase is ln φ_j^∞ < 0. Thermodynamic stabilization related to the hypothetical ideal state in the infinitely diluted state of the micellar pseudophase, originating from the limit value of the chemical potential in the case of Triton X100, is of the entropic origin (s_i^E,∞ > 0, h_i^E,∞ > 0), while for Brij S20, it is of the enthalpy origin (s_j^E,∞ < 0, h_i^E,∞ < 0).

中文翻译：

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在温度间隔T =（283.15–318.15）K时，Triton X100和Brij S20在无限稀释的二元胶束Triton X100–Brij S20在水相中的胶束假相中的活度系数。

无限稀释胶束假相的活度系数等于二阶马尔古莱斯函数的参数：LNφ_我^∞ =一个_IJ和lnφ _Ĵ ^∞ =一_ジ。无限稀释胶束假相的过量化学势可使用偏摩尔焓来表示（ħ_我^E，∞）和熵（小号_我^E，∞），外推在无限稀释状态：μ_我^E，∞ = RT LNφ_我^∞ = ħ_我^E，∞ - TS_我^E，∞。表面活性剂Triton X100–Brij S20的二元混合物不是对称的二元混合物。在温度间隔Ť =（283.15-318.15）K，为的Triton X100的活度系数=我在无限稀释胶束假相是LNφ_我^∞ <0; 此外，对于S20的Brij活度系数= Ĵ在无限稀释胶束假相是LNφ _Ĵ ^∞ <0.热力学在胶束假相的无限稀释的状态与所述假想理想状态稳定，源自化学的限制值在的Triton X100的情况下电位，是熵源的（小号_我^E，∞ > 0，h _i ^E，∞ > 0），而对于Brij S20，它是焓源的（s _j ^E，∞ <0，h _i ^E，∞ <0）。