Herein, the aggregation phenomena of the two cationic amphiphiles, the hexadecyltrimethylammonium bromide (CTAB), and tetradecyltrimethylammonium bromide (TTAB), has been investigated in the presence of monosaccharide (glucose) and disaccharide (maltose) at varying compositions and temperatures. The critical micelle concentration (cmc), degree of ionization (g), and several thermodynamic properties have been estimated applying the conductivity measurement technique. To explore the consequence of additives on the mixed micellization of TTAB + CTAB, glucose as monosaccharide having two concentrations (1% & 5% (w/w) glucose) and maltose as disaccharide containing single concentration (1% (w/w)) have been employed. Together with the mixture of TTAB and CTAB, investigation of the physicochemical parameters of pure amphiphiles in glucose and maltose solutions was quantified. The efficiency of the additives in depressing the cmc values followed the order: 1 (w/w) % maltose >5 (w/w) % glucose >1% (w/w) glucose. The ideal cmc (cmc^id), activity coefficients, and β values suggested the synergistic attraction (attractive force) between these two surfactants. By utilizing the Rubingh model, the evaluated micellar mole fractions of CTAB (α₁) coupled with the ideal mole fraction () imply the increase of the contribution of CTAB in the mixed micellization with rising the α₁ values. The values of the negative excess free energy () implied the stability of the mixed micelle formed. The changes in standard enthalpy (ΔH°_m) and changes in standard entropy (ΔS°_m) of micellization reveal the presence of different modes of interactions like electrostatic, ion-dipole, H-bonding, and hydrophobic interactions among the studied components.

中文翻译：

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可变温度下多元醇介质中两种离子表面活性剂混合物的组装：结合电导率和理论研究

在此，研究了两种阳离子两亲物十六烷基三甲基溴化铵 (CTAB) 和十四烷基三甲基溴化铵 (TTAB) 在不同组成和温度下存在单糖（葡萄糖）和二糖（麦芽糖）的情况下的聚集现象。应用电导率测量技术估计了临界胶束浓度 ( cmc )、电离度 ( g ) 和几个热力学性质。探讨添加剂对 TTAB + CTAB 混合胶束化的影响，葡萄糖作为单糖具有两种浓度（1% 和 5% ( w/w ) 葡萄糖）和麦芽糖作为双糖含有单一浓度（1% ( w/w)) 已被雇用。连同 TTAB 和 CTAB 的混合物，对葡萄糖和麦芽糖溶液中纯两亲物的物理化学参数的研究进行了量化。添加剂降低cmc值的效率遵循以下顺序：1 ( w/w ) % 麦芽糖 >5 ( w/w ) % 葡萄糖 >1% ( w/w ) 葡萄糖。理想的cmc ( cmc ^id )、活度系数和β值表明这两种表面活性剂之间存在协同吸引力（吸引力）。通过利用 Rubingh 模型，评估的 CTAB 胶束摩尔分数 ( α ₁ ) 与理想摩尔分数 () 意味着 CTAB 在混合胶束化中的贡献随着α ₁值的增加而增加。负过剩自由能 ( ) 的值暗示了所形成的混合胶束的稳定性。胶束化的标准焓 ( ΔH° _m ) 和标准熵 ( ΔS° _m ) 的变化揭示了研究组分之间存在不同的相互作用模式，如静电、离子偶极子、氢键和疏水相互作用。