[article]
| Titre : |
Synthesis and surface activity of guerbet betaine surfactants with ethylene oxide groups |
| Type de document : |
texte imprimé |
| Année de publication : |
2012 |
| Article en page(s) : |
p. 252-255 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Surfactants
|
| Tags : |
Synthèse 'Surfactant bétaïne Guerbet' 'Oxyde éthylène' 'Tension surface' |
| Index. décimale : |
668.1 Agents tensioactifs : savons, détergents |
| Résumé : |
Three series of Guerbet betaine surfactants with ethylene oxide groups were synthesized by Guerbet alkyl polyoxyethylene ether surfactants, epichlorohydrin, dimethylamine and sodium chloroacetate. Their structures were confirmed by MS. The critical micelle concentrations (CMC) and surface tension at CMC (γCMC) of all prepared Guerbet betaine surfactants were determined by K100C processor tensiometer with the Wilhelmy-plate method at 25 °C. It is found that synthesized surfactants exhibit great efficiency of reducing surface tension. As the number of ethylene oxide groups increases, the γCMCgradually increases. As the length of the hydrophobic chain of Guerbet betaine surfactants increases, the γCMCincreases firstly and then decreases. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Methods - Synthesis - Determination of COMC and γCMC
- RESULTS AND DISCUSSION : Synthesis of Guerbet alkyl glycidyl ether with ethylene oxide groups - Synthesis of {N,N-dimethylN-[2-hydroxy-3-Guerbet alkyl(ethylene oxide)n]ammonio}acetate - Surface properties of Guerbet betaine surfactants |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=14915 |
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 49, N° 3 (04-05/2012) . - p. 252-255
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Synthesis and surface activity of guerbet betaine surfactants with ethylene oxide groups in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 49, N° 3 (04-05/2012)
