Interactions between gemini and nonionic pharmaceutical surfactants

Autor:	D. Gerrard Marangoni, Shawn D. Wettig, Javed Akbar, Rubena DeubryR. Deubry
Rok vydání:	2010
Předmět:	Surface tension Homologous series chemistry.chemical_compound Pulmonary surfactant Stereochemistry Chemistry Organic Chemistry Polymer chemistry General Chemistry Catalysis
Zdroj:	Canadian Journal of Chemistry. 88:1262-1270
ISSN:	1480-3291 0008-4042
DOI:	10.1139/v10-135
Popis:	The nature and strength of the interactions between the 1,3-bis(dimethylhexadecyl)propanediammonium dibromide (16-3-16) gemini surfactant and a homologous series of nonionic polyoxyethylene (20) sorbitan ester surfactants having laurate (Tween 20), stearate (Tween 60), or oleate (Tween 80) alkyl tails has been investigated. The critical micelle concentration (cmc) values of the mixed gemini–tween systems were determined using the du Noüy ring surface tension method, and the results have been analyzed using Clint’s, Rubingh’s, Motomura’s, and Maeda’s theories for mixed micellar systems. The results demonstrate a synergistic mixing behaviour between the Tween surfactants and the 16-3-16 gemini surfactant, where the strength of interaction is dependent upon the chain length and saturation of the Tween alkyl tail.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::869d2192c404a5064c5abd68c78c3bdf https://doi.org/10.1139/v10-135 Zobrazit plný text záznamu Plný text ve formátu PDF