Опубликована: Янв. 1, 2024
Язык: Английский
Journal of Molecular Liquids, Год журнала: 2025, Номер unknown, С. 126940 - 126940
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
1
Elsevier eBooks, Год журнала: 2025, Номер unknown, С. 701 - 740
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
1
Journal of Colloid and Interface Science, Год журнала: 2025, Номер 684, С. 105 - 121
Опубликована: Янв. 13, 2025
Due to its huge polar headgroup, octaoxyethylene octyl ether carboxylic acid (C8E8CH2COOH = Akypo LF2™) is supposed not be able change curvature sufficiently form bicontinuous microemulsions. Instead, upon adding an oil the binary water - surfactant system, excess could squeezed out or a biliquid foam form. An auto-dilution setup was used record small-angle X-ray scattering data along six dilution lines in newly established phase diagram of ternary system 2-ethylhexanol C8E8CH2COOH water. Evaluation combination with recorded revealed that microemulsions slightly amphiphilic indeed do show classical structural inversion via structure increasing content, but instead sequence: O/W micelles nanofoam molecular co-solubilization phase. The 102-104 molecules enclosed by locally flat layers interdigitated hydrated headgroups exists middle diagram. We may speculate this can as multitude nanocontainers, e.g., for chemical reactions aqueous environment, negligible potential. In vicinity critical point, spontaneous formation stable mesoscale droplets (an "Onuki-like" structure, known antagonistic salts) detected region showing pronounced Tyndall effect.
Язык: Английский
Процитировано
0
Colloids and Surfaces C Environmental Aspects, Год журнала: 2025, Номер unknown, С. 100061 - 100061
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
0
Physics of Fluids, Год журнала: 2025, Номер 37(3)
Опубликована: Март 1, 2025
A simple analytical model for the analysis of diffuse small-angle scattering data is proposed in this work to characterize structure colloidal suspensions water mixtures organic solvents and amphiphiles. fractal factor term describing low q region was incorporated function, which includes a particle diameter variable within power-law decay intensity as function vector. This associated with not only from either surface or mass fractals but could also signal fluid more accurately than Ornstein–Zernike, Debye–Anderson–Brumberger, Teubner Strey models. displayed Guinier component (curvature) arising form objects, considered here spheres. Patterns broad Gaussian peak at higher aggregation micelles responsible formation fractals. Each (power-law, Guinier, Gaussian) contained term, then shared among all three functions. Parameter sharing stabilized numerical fits provided an accurate estimate average size object inhomogeneity fluid. Examples use study separation water-soluble solvent contaminants are given used purpose developing strategies remediation polluted groundwater.
Язык: Английский
Процитировано
0
Colloids and Surfaces C Environmental Aspects, Год журнала: 2025, Номер unknown, С. 100064 - 100064
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0
Physics of Fluids, Год журнала: 2024, Номер 36(7)
Опубликована: Июль 1, 2024
Tetrahydrofuran (THF) and dimethylsulfoxide (DMSO) are miscible in water due to hydrogen (H) bonding. Amphiphilic glycerol sucrose esters with a different number of tails heads separate them, depending on the organic solvent concentration. Separation is worse solutions where amphiphiles most soluble. occurs interactions between either solvents or water, as shown by attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR). best more tails. Multiple hamper ester heads, thereby facilitating promote solvent–water separation. THF interacts tails, while H bonds indicated activity coefficients estimated conductor-like screening model for real solvents. In THF, self-assemble into micelles, small angle x ray scattering (SAXS). Without likely both inside outside micelles. SAXS shows that micelles shrink 4% because molecules partition them smaller than THF. With additional swell emulsions. Dissimilar DMSO preferentially rather their ATR-FTIR proportion free vs bonded S=O groups decreases upon mixing esters. primarily accept bonds, sigma profile. This leads competition displacing DMSO.
Язык: Английский
Процитировано
1
Discover Water, Год журнала: 2024, Номер 4(1)
Опубликована: Окт. 18, 2024
Diisopropylamine (DIPA), aminomethyl propanol (AMP), amino ethoxy ethanol (AEE), diethanolamine (DEA), ethanolamine (EA), pyridine (PYR) and methyl (MDEA) are used for carbon capture to sweeten sour gas, found in groundwater. They also cosmetic products. Taurine is abundant the body, with key biological functions linked its charged SO groups. Interactions between amines have not been studied, but can strongly affect function of taurine. Fourier transform infrared spectroscopy indicates SO…HN hydrogen bonding taurine DIPA, AMP, AEE, DEA, EA MDEA. These interactions induce formation hydrophobic amine-taurine clusters, thus decreasing amine miscibility water, as revealed by light scattering. This effect most marked leading turbid mixtures indicative micron-sized droplets. PYR likely interact via S…N bonding. study offers insights regarding potential mechanisms toxicity humans.
Язык: Английский
Процитировано
0
Colloids and Surfaces C Environmental Aspects, Год журнала: 2024, Номер unknown, С. 100051 - 100051
Опубликована: Ноя. 1, 2024
Язык: Английский
Процитировано
0
Опубликована: Янв. 1, 2024
Язык: Английский
Процитировано
0