Results 141 to 150 of about 409 (199)
True cosolvency. Acetone/diethylether/polystyrene
Die Makromolekulare Chemie, 1973 Bernhard Wolf, R. J. Molinari
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Journal of Molecular Liquids, 2021
Abstract It is known that dilution of ionic liquid with appropriate cosolvents modifies a number of physicochemical properties that include surface tension, viscosity, ion diffusivity and many others. The cosolvents, particularly when present in low concentrations, also undergo substantial changes in their inherent dynamics.
Juriti Rajbangshi, Ranjit Biswas
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Abstract It is known that dilution of ionic liquid with appropriate cosolvents modifies a number of physicochemical properties that include surface tension, viscosity, ion diffusivity and many others. The cosolvents, particularly when present in low concentrations, also undergo substantial changes in their inherent dynamics.
Juriti Rajbangshi, Ranjit Biswas
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Solubility in Amide–Water Cosolvent Systems II: Cosolvent Excess at Solute Surface
Journal of Pharmaceutical Sciences, 1979The solubility of methylparaben was determined at 25 degrees in a series of amide-water cosolvent systems. The data were used to demonstrate the possibility of an amide excess at or near the ester solute over that in the bulk solvent. The analysis, stemming from an interfacial tension-solute area solubility model proposed by earlier workers, involved ...
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Surfactant And Cosolvent Flushing
2014When properly implemented, surfactant and cosolvent flushing technologies can recover substantial quantities of contaminant mass from chlorinated solvent source zones in relatively short time periods. As with most in situ remediation technologies, surfactant and cosolvent flushing are most effective in relatively homogeneous subsurface systems with ...
Kurt D. Pennell +2 more
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Journal of Molecular Liquids, 2017
Abstract We analyze the number density profiles of solvent and cosolvent entropically formed near a very large solute using an integral equation theory combined with a reliable bridge function. The entropic enrichment of cosolvent near the solute exhibits rather complex behavior, depending on the solvent and cosolvent sizes and the cosolvent ...
Masahiro Kinoshita, Tomohiko Hayashi
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Abstract We analyze the number density profiles of solvent and cosolvent entropically formed near a very large solute using an integral equation theory combined with a reliable bridge function. The entropic enrichment of cosolvent near the solute exhibits rather complex behavior, depending on the solvent and cosolvent sizes and the cosolvent ...
Masahiro Kinoshita, Tomohiko Hayashi
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Protein volume changes on cosolvent denaturation
Biophysical Chemistry, 2005A thermodynamic relationship is obtained which links the effect of a cosolvent on the denaturation equilibrium of a protein to the effect of the cosolvent on the change in partial molar volume (pmv) of a protein on denaturation. The relationship uses the concept of preferential interactions and is exact for an infinitely dilute protein. Analysis of the
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Solubilization of Biphenyl Dimethyl Dicarboxylate by Cosolvency
Drug Development and Industrial Pharmacy, 1999Biphenyl dimethyl dicarboxylate (BDD) is a synthetic analogue of schizandrin C, one of the components isolated from Fructus schizandrae, and has been widely prescribed for improvement of liver functions and symptoms of patients with liver disease. However, its oral preparations have been known to have limited bioavailability due to its extremely low ...
S K, Han, G Y, Kim, Y H, Park
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Cosolvent effects on sorption isotherm linearity
Journal of Contaminant Hydrology, 2002Sorption-desorption hysteresis, slow desorption kinetics, and other nonideal phenomena have been attributed to the differing sorptive characteristics of the natural organic polymers associated with soils and sediments. In this study, aqueous and mixed solvent systems were used to investigate the effects of a cosolvent, methanol, on sorption isotherm ...
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Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology, 1998
The partial specific volume (V) and adiabatic compressibility (beta) of myoglobin have been shown to be reduced by small cosolvents such as glycerol (A. Priev, A. Almagor, S. Yedgar, B. Gavish, Biochemistry 35 (1996) 2061-2066). To elucidate the effect of the cosolvent size on these protein properties, in the present study we determined V and beta of ...
A, Almagor +4 more
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The partial specific volume (V) and adiabatic compressibility (beta) of myoglobin have been shown to be reduced by small cosolvents such as glycerol (A. Priev, A. Almagor, S. Yedgar, B. Gavish, Biochemistry 35 (1996) 2061-2066). To elucidate the effect of the cosolvent size on these protein properties, in the present study we determined V and beta of ...
A, Almagor +4 more
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Cosolvent Preferential Molecular Interactions in Aqueous Solutions
The Journal of Physical Chemistry B, 2011We extend the application of Kirkwood-Buff (KB) solution theory integrals to calculate cosolvent preferential interaction parameters from molecular simulations by deriving from a single simulation trajectory the excess chemical potential of the solute in addition to the solute-solvent molecular distribution functions.
M Hamsa, Priya +2 more
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