[article]
| Titre : |
Viscometric Behaviour and Micellization of Complexes of Copper (II) Stearate with N-donor Heterocyclic Dyes |
| Type de document : |
texte imprimé |
| Auteurs : |
N. Mathur, Auteur ; S. Pooja, Auteur ; A. Imran, Auteur ; K. G. Ojha, Auteur |
| Année de publication : |
2009 |
| Article en page(s) : |
p. 25-30 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Benzothiazoles
Colorants
Composés hétérocycliques
Cuivre -- Composés organiques
Jones-Dole, Equation de
Moulik, Equation de
Phénylthiourée
Surfactants
Viscosité
|
| Index. décimale : |
668.1 Agents tensioactifs : savons, détergents |
| Résumé : |
Colloido-chemical behavior of copper (II) stearate and N-donor ligands in benzene-methanol mixture of varying composition has been investigated by viscometric measurements. The critical micelle concentration values depend upon the composition of solvent mixture and are to be found in close agreement with each other. The general trend observed is that the viscometric parameters with concentration are quite different and the plots are obtained with curvature at a definite concentration corresponding to critical micelle concentration at which there is marked change in the aggregation of the complex molecules. The results of phenylthiourea and benzothiazole complexes in regards to solute-solvent and solute-solute interactions in mixed solvent systems have been discussed in terms of the equations proposed by Moulik and Jones-Dole. The complexes were synthesized with N-donor ligands and copper (II) stearate and characterized by their elemental analysis, molecular weight, melting point, IR and NMR spectral studies. Due to the surface-active properties of copper stearate, the complexes show remarkable applications in industries and are used as emulsifiers, dispersing agents, foaming and wetting agents. N-donor ability of ligands make them useful as intermediates for many organic compounds such as colorants, agrochemical and pharmaceutical. They are good antiviral, antibacterial and antimalerial agents. |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3717 |
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 46, N° 1/1009 (01-02/2009) . - p. 25-30
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