2008
DOI: 10.1021/jp710299t
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Use of Fluorescence Probes for Studying Kamlet−Taft Solvatochromic Parameters of Micellar System Formed by Binary Mixture of Sodium Dodecyl Sulfate and Triton-X 100

Abstract: Fluorescence probes have been used to estimate Kamlet-Taft solvatochromic parameters alpha and pi* representing hydrogen-bond donation ability and dipolarity/polarizability, respectively, of sodium dodecyl sulfate (SDS)-Triton X 100 (TX100) mixed aggregates with varying compositions. The hydrogen-bond donation ability of the mixed aggregate has been found to increase with SDS composition, whereas the dipolarity/polarizability parameter decreases. The relative contribution of electrostatic and steric effect tow… Show more

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Cited by 22 publications
(5 citation statements)
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“…Therefore, it is expected that OP10∼AC and SDS will tend to form mixed micelles or co‐micelles, rather than solubilized micelles of SDS in aqueous solution beyond CMC. The aggregation behavior of the mixture of Triton X‐100 and SDS in aqueous solution has been investigated in detail by Shannigrahi and Bagchi, which is helpful for us to analyze the cooperation of SDS and OP10∼AC by means of comparing the construction of co‐micelle formed by SDS/Triton X‐100 and the R value which affected mechanical strengths of present HA‐gels.…”
Section: Resultsmentioning
confidence: 99%
“…Therefore, it is expected that OP10∼AC and SDS will tend to form mixed micelles or co‐micelles, rather than solubilized micelles of SDS in aqueous solution beyond CMC. The aggregation behavior of the mixture of Triton X‐100 and SDS in aqueous solution has been investigated in detail by Shannigrahi and Bagchi, which is helpful for us to analyze the cooperation of SDS and OP10∼AC by means of comparing the construction of co‐micelle formed by SDS/Triton X‐100 and the R value which affected mechanical strengths of present HA‐gels.…”
Section: Resultsmentioning
confidence: 99%
“…The procedure used in the regression analysis involves a rigorous statistical treatment to find out which parameter in eq is best suited to the water−organic mixed solvents. The KAT parameters for all of the water−organic solvents mixtures used in this work were obtained from the plots of each property versus the mole fraction of the organic solvent of the values that have been reported in the literature for some other percentages of aqueous solutions of the alcohols used in this study, and the dielectric constant values were obtained from the literature for the different mixed solvents. The dielectric constants and the calculated KAT parameter values used are listed in Table . A stepwise procedure and least-squares analysis were applied to select the significant solvent properties to be influenced in the model and to obtain the final expression for the protonation constants.…”
Section: Resultsmentioning
confidence: 99%
“…The exchange of solvent S1 by S2 within the solvation microenvironment of the probe is indicated by eqn (6), while eqn (7) depicts the exchange of solvent S1 by the S12. Furthermore, f 2/1 and f 12/1 constants can be calculated by use of eqn ( 8)- (10):…”
Section: Preferential Solvationmentioning
confidence: 99%
“…[6][7][8] In the presence of additives, the surfactantsolvent interactions are signicantly altered and consequently change the CMC values, surface activity, micelle size and phase behavior. [8][9][10] Triton X-100 is freely soluble in non-aqueous solvents and forms a micro emulsion. 11,12 It is well documented that a shi in absorption wavelength of probes in their binary mixtures provides more information about the details of solute-solvent interactions.…”
Section: Introductionmentioning
confidence: 99%