Colloids and Surfaces A: Physicochemical and Engineering Aspects
An attenuated total internal reflectance spectroscopy study of ET(30) at the free oil-water interface
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Cited by (43)
Synthesis of novel betaine dyes for multi chromic sensors
2019, Journal of Molecular StructureCitation Excerpt :The solvatochromic phenomenon in hydrogen-bond donor (HBD) solvent depend on specific intermolecular hydrogen bond interactions with the phenolate oxygen atom, whereas in non-HBD solvents, it depends on London dispersion forces and induction forces (nonspecific intermolecular dye to solvent interactions) [47]. Finally, all the dyes showed distinct color changes visible to the naked eye in variable solvents, and therefore have potential in oil analysis, polymer characterization and biological probes [1,48–51]. A theoretical investigation has been performed in order to get further insight into the geometry of the structures, optical properties and electronic configurations of the betaine dyes.
Solvatochromic betaine dyes of different hydrophobicity in ionic surfactant micelles: Molecular dynamics modeling of location character
2018, Colloids and Surfaces A: Physicochemical and Engineering AspectsCitation Excerpt :The abovementioned molecular probes of the first kind normally serve for determining of the surface electrical potential, Ψ, of micelles [1–7], lipoid monomolecular films [8], and surfactant monolayers on water–air interface [9]; for review of the problem, see ref. [10–12], whereas the second ones allow estimating the polarity of the pseudophase [13–18]. Pyridinium N-phenolate dyes are known as the most powerful solvatochromic indicators [19,20] often used for exploration of oil/water and air/water interfaces [21,22] and micellar solutions, microemulsions, etc. [4,11,12,15,20,23–33], and at the same time they act as acid-base indicators, which is also utilized in the same field of research [4,11,12,34–39]. The general formula and protolytic equilibrium of these dyes is shown in Scheme 1.
Extraction kinetics of Fe(III) by di-(2-ethylhexyl) phosphoric acid using a Y-Y shaped microfluidic device
2014, Chemical Engineering Research and DesignCitation Excerpt :Existence of the dimeric D2EHPA species at the interface should also be questioned. Note, for example, that interfacial dielectric properties differ from those of the bulk solutions (Perera et al., 1995) and so the extent of dimerisation is also expected to differ. Similarly, the presence of higher degrees of bulk extractant polymerisation must be confirmed (Buch et al., 2002).
Contribution of different physical forces to the disjoining pressure of a thin water film being pressed by an oil droplet
2010, Journal of Colloid and Interface ScienceIn situ Fourier transform infrared spectroscopic studies of limonene epoxidation over PW-Amberlite
2009, Applied Catalysis A: GeneralInterfacial phenomena in solvent extraction and its influence on process performance
2006, Tsinghua Science and Technology