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
Fluorescence probes have been used to estimate Kamlet−Taft solvatochromic parameters α and π* 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 do...
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Veröffentlicht in: | The journal of physical chemistry. B 2008-03, Vol.112 (10), p.2868-2873 |
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Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | Fluorescence probes have been used to estimate Kamlet−Taft solvatochromic parameters α and π* 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 toward the total free energy of micellization have been calculated for the mixture. The solvatochromic parameters α and π* depend linearly on the total free energy of micellization, indicating a correlation between aggregational and solvatochromic properties. |
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ISSN: | 1520-6106 1520-5207 |
DOI: | 10.1021/jp710299t |