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Colloidal and biological properties of cationic single-chain and dimeric surfactants

AuthorsMartín Herrera, V. I.; De la Haba, R. R.; Ventosa, Antonio; Congiu, E. ; Ortega Calvo, J. J. ; Noyá Morán, Mª L.
Issue Date1-Feb-2014
CitationColloids and Surfaces B: Biointerfaces 114: 247-254 (2014)
AbstractThe colloidal and biological properties of the two single-chain surfactants N-benzyl-N,N-dimethyl-N-(1-dodecyl)ammonium bromide (PH12) and N-cyclohexylmethyl-N,N-dimethyl-N-(1-dodecyl)ammonium bromide (CH12) and their two dimeric counterparts N,N'-(1,3-phenylenebis(methylene))bis(N,N-dimethyl-N-(1-dodecyl)ammonium dibromide (12PH12) and N,N'-(cyclohexane-1,3-diylbis(methylene))bis(N,N-dimethyl-N-(1-dodecyl)ammonium dibromide (12CH12) were investigated. The thermodynamic functions of the self-aggregation process were estimated by using calorimetric measurements and the micellization enthalpy values, δHM, were examined considering the different enthalpic contributions to δHM. In the investigation of the structure-property relationship, it was found that the surfactant structure does not influence practically the foamability of the surfactants, but it plays a key role in their solubilization capacity, antimicrobial activity and biodegradability.
Identifiersdoi: 10.1016/j.colsurfb.2013.10.017
issn: 0927-7765
Appears in Collections:(IRNAS) Artículos
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