化学
动态光散射
电导法
胶束
摩尔分数
水溶液
小泡
聚合数
溴化物
肺表面活性物质
临界胶束浓度
离子液体
Zeta电位
分析化学(期刊)
无机化学
膜
化学工程
物理化学
有机化学
纳米颗粒
工程类
催化作用
生物化学
作者
Amalendu Pal,Renu Punia
标识
DOI:10.1016/j.molliq.2020.112803
摘要
In this article, we have investigated the micellization behaviour of cationic surfactant tetradecyltrimethylammonium bromide (TTAB) and imidazolium based biamphiphilic surface active ionic liquid (BAIL), 3-methyl-1-pentylimidazolium dodecylsulfate [C5mim][DS] in aqueous solution, by employing various state of art techniques such as conductometry, tensiometry, spectrofluorometry, turbidity, dynamic light scattering (DLS), zeta potential (ζ), 1H NMR, freeze scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM). The conductometry, and tensiometry measurements have revealed that the micelle formation takes place at lower concentration due to strong synergistic interactions. The aggregation number (Nagg) determined from fluorescence using pyrene as a probe confirms the presence of micelle/vesicles or micelles or vesicles together at different mole fraction ratio of pure components. The various surface parameters have been evaluated by using the tensiometry. Turbidity and DLS measurements have confirmed the formation of micelles as well as vesicles over an exceptionally wide range of concentration (mole fraction = 0.1–0.9). The shape and morphology of the aggregates has been studied by using the FE-SEM and TEM measurements. The 1H NMR measurements shed light on the type of interactions prevail in the two oppositely charged mixed system.
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