乙二醇化的深共晶溶剂影响了[C6mim][Br]离子液体在水溶液中的胶束行为

IF 5.3 2区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Molecular Liquids Pub Date : 2025-04-11 DOI:10.1016/j.molliq.2025.127577

Rajat Sinhmar, Deeksha Saini, Vickramjeet Singh

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引用次数: 0

摘要

研究了合成的表面活性离子液体（SAIL）--1-己基-3-甲基溴化咪唑鎓（[C6mim][Br]）在深共晶溶剂（DES）水性混合物中的胶束化行为。使用电导率测量法、紫外-可见（UV-Vis）光谱法和傅立叶变换红外（FTIR）光谱法评估了[C6mim][Br]在聚乙二醇：柠檬酸（PEG:CA）和乙二醇：柠檬酸（EG:CA）DES 水溶液中的胶束化。在 298.15 K、308.15 K 和 318.15 K 温度条件下，使用电导率测量法评估了临界胶束浓度（CMC）的温度依赖性，DES 的水溶液浓度分别为 0.2 M、0.3 M 和 0.4 M。紫外可见光谱和傅立叶变换红外光谱技术评估了水性混合物中发生的分子相互作用。

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EGylated deep eutectic solvent influenced micellization behaviour of [C6mim][Br] ionic liquid in aqueous solutions

The micellization behavior of synthesized surface-active ionic liquid (SAIL), 1-hexyl-3-methyl imidazolium bromide ([C₆mim][Br]) was studied in aqueous mixtures of deep eutectic solvents (DESs). The micellization of [C₆mim][Br] in aqueous solutions of polyethylene glycol:citric acid (PEG:CA) and ethylene glycol:citric acid (EG:CA) DESs were evaluated using conductivity measurements, Ultraviolet–visible (UV–Vis) spectroscopy, and Fourier Transform Infrared (FTIR) spectroscopy. The temperature dependence of the critical micelle concentration (CMC) was evaluated using conductivity measurements at 298.15 K, 308.15 K, and 318.15 K, with aqueous DES concentrations of 0.2 M, 0.3 M, and 0.4 M. The double derivative method was applied for CMC determination, revealing anomalous behavior in the variation of CMC with DES concentration. UV–Vis and FTIR spectroscopic techniques evaluated the molecular interactions occurring in the aqueous mixture.

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来源期刊

Journal of Molecular Liquids 化学-物理：原子、分子和化学物理

CiteScore

10.30

自引率

16.70%

发文量

2597

审稿时长

78 days

期刊介绍： The journal includes papers in the following areas: – Simple organic liquids and mixtures – Ionic liquids – Surfactant solutions (including micelles and vesicles) and liquid interfaces – Colloidal solutions and nanoparticles – Thermotropic and lyotropic liquid crystals – Ferrofluids – Water, aqueous solutions and other hydrogen-bonded liquids – Lubricants, polymer solutions and melts – Molten metals and salts – Phase transitions and critical phenomena in liquids and confined fluids – Self assembly in complex liquids.– Biomolecules in solution The emphasis is on the molecular (or microscopic) understanding of particular liquids or liquid systems, especially concerning structure, dynamics and intermolecular forces. The experimental techniques used may include: – Conventional spectroscopy (mid-IR and far-IR, Raman, NMR, etc.) – Non-linear optics and time resolved spectroscopy (psec, fsec, asec, ISRS, etc.) – Light scattering (Rayleigh, Brillouin, PCS, etc.) – Dielectric relaxation – X-ray and neutron scattering and diffraction. Experimental studies, computer simulations (MD or MC) and analytical theory will be considered for publication; papers just reporting experimental results that do not contribute to the understanding of the fundamentals of molecular and ionic liquids will not be accepted. Only papers of a non-routine nature and advancing the field will be considered for publication.