Abstract
New extended anionic surfactants with a carboxylate or sulfate polar head were synthesized from polypropoxylated alcohols, and their structures were confirmed by 1H and 13C nuclear magnetic resonance analysis. The extended surfactant critical micelle concentration was found to decrease with the length of the polypropylene glycol spacer. Surfactants containing a diethylene glycol link to the head group exhibited a higher critical micelle concentration than did their nondiethoxylated homologs.
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Abbreviations
- alcohol-4:
-
2-O-dodecyl-(α-polypropylene glycol)
- CMC:
-
critical micelle concentration
- DMSO:
-
dimethyl sulfoxide
- NMR:
-
nuclear magnetic resonance
- TLC:
-
thin-layer chromatography
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Fernández, A., Scorzza, C., Usubillaga, A. et al. Synthesis of new extended surfactants containing a carboxylate or sulfate polar group. J Surfact Deterg 8, 187–191 (2005). https://doi.org/10.1007/s11743-005-346-2
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DOI: https://doi.org/10.1007/s11743-005-346-2