Lauryldimethylamine oxide
| Lauryldimethylamine oxide | ||
|---|---|---|
 | ||
| IUPAC name N,N-Dimethyldodecan-1-amine oxide | ||
| Other names Lauramine oxide; Dodecyldimethylamine oxide; Dimethyldodecylamine-N-oxide | ||
| Identifiers | ||
| CAS number | 1643-20-5  | |
| PubChem | 15433 | |
| Jmol-3D images | {{#if:CCCCCCCCCCCC[N+](C)(C)[O-]|Image 1 | |
| ||
| Properties | ||
| Molecular formula | C14H31NO | |
| Molar mass | 229.40 g mol−1 | |
(verify) (what is: / ?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | ||
| Infobox references | ||
Lauryldimethylamine oxide, also known as dodecyldimethylamine oxide or DDAO, (also N,N-Dimethyldodecylamine N-oxide), is an amine oxide surfactant. It is one of the most frequently-used surfactants of this type.[1]
At high concentrations, DDAO forms liquid crystalline phases.[2] Despite having only one polar atom that is able to interact with water - the oxygen atom (the nitrogen atom is hidden from intermolecular interactions), DDAO is a strongly hydrophilic surfactant: it forms normal micelles and normal liquid crystalline phases. High hydrophilicity of this surfactant can be explained by the fact that it forms very strong hydrogen bonds with water: the energy of DDAO - water hydrogen bond is about 50 kJ/mol.[3]
References
- ↑ Friedli, Floyd E (2001). Detergency of Specialty Surfactants. New York, NY: Dekker. ISBN 0-8247-0491-6.
- ↑ Kocherbitov, V., Söderman, O. (2006). "Hydration of Dimethyldodecylamine-N-Oxide: Enthalpy and Entropy Driven Processes". J.Phys.Chem.B. 110 (27): 13649–13655. doi:10.1021/jp060934v. PMID 16821893.
- ↑ Kocherbitov, V.; Veryazov, V.; Söderman, O. (2007). "Hydration of Trimethylamine-N-oxide and of Dimethyldodecylamine-N-oxide: An Ab Initio study". J. Molec. Struct.: Theochem. 808: 111–118. doi:10.1016/j.theochem.2006.12.043.