English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/75099
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Aggregation phenomena on the ternary ionic-nonionic surfactant system: Didodecyldimethylammonium bromide/octyl-β-D-glucopyranoside/water. Mixed microaggregates, vesicles, and micelles

AuthorsJunquera, Elena; Burgo, P. del; Arranz, R.; Llorca, Óscar ; Aicart, Emilio
Issue Date2005
PublisherAmerican Chemical Society
CitationLangmuir, 21 (5) : 1795- 1801 (2005)
AbstractThe formation of a variety of mixed colloidal aggregates has been investigated on a ternary ionic-nonionic system constituted by (i) a double-chain cationic surfactant with a 12-carbon atom hydrophobic tail, didodecyldimethylammonium bromide (di-C12DMAB), (ii) a nonionic single-chain surfactant, octyl-β-D-glucopyranoside (OBG), and (iii) water. The study has been carried out by means of conductivity, ζ-potential, transmission electron microscopy (TEM), and cryogenic transmission electron microscopy (cryo-TEM) experiments on the highly diluted, very diluted, and moderately diluted regions. The formation of mixed microaggregates, prior to the appearance of mixed vesicles, has been undoubtly confirmed by conductivity, TEM, and ζ-potential results. The concentrations at which these mixed colloidal aggregates form, i.e., the mixed critical microaggregate concentration (CAC*), the mixed critical vesicle concentration (CVC*), and the mixed critical micelle concentration (CMC*), have been determined from conductivity data, while the ζ-potential experiments allow for the characterization of the aggregate/solution interface. The shape and size of the microaggregates and vesicles have been evaluated from TEM and cryo-TEM micrographs, respectively. All of the experimental evidence has been also analyzed in terms of the theoretical packing parameter, P. © 2005 American Chemical Society.
URIhttp://hdl.handle.net/10261/75099
DOI10.1021/la0475223
Identifiersdoi: 10.1021/la0475223
issn: 0743-7463
e-issn: 1520-5827
Appears in Collections:(CIB) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.