Document Detail


IGC studies of binary cationic surfactant mixtures.
MedLine Citation:
PMID:  17706242     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Inverse gas chromatography (IGC) has been used to measure the interaction parameter between two twin-tailed cationic surfactants. Didodecyldimethylammonium (DDAB) and dioctadecyldimethylammonium (DODAB) bromides and their mixtures were used as stationary phases. IGC and DSC techniques have been used for the determination of the temperature zone of working. The activity coefficients at infinite dilution (on a mole fraction basis) were calculated for eleven probe solutes on each pure surfactant column. Values of interaction parameter between surfactants obtained at four weight fractions of the mixtures and at five temperatures are positive and suggested that the interactions is more unfavourable with the increment of DODAB concentration in the mixture. The results are interpreted on the basis of partial miscibility between DDAB and DODAB.
Authors:
S M Bardavid; P C Schulz; E L Arancibia
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-07-28
Journal Detail:
Title:  Journal of colloid and interface science     Volume:  316     ISSN:  0021-9797     ISO Abbreviation:  J Colloid Interface Sci     Publication Date:  2007 Dec 
Date Detail:
Created Date:  2007-10-15     Completed Date:  2008-02-26     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0043125     Medline TA:  J Colloid Interface Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  114-9     Citation Subset:  IM    
Affiliation:
Departamento de Química, Facultad de Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán, Avda. Independencia 1800, 4000 - San Miguel de Tucumán, Argentina.
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MeSH Terms
Descriptor/Qualifier:
Cations / chemistry
Chromatography, Gas / methods*
Hot Temperature
Quaternary Ammonium Compounds / chemistry
Surface-Active Agents / chemistry*
Chemical
Reg. No./Substance:
0/Cations; 0/Quaternary Ammonium Compounds; 0/Surface-Active Agents; 13146-86-6/didodecyldimethylammonium; 14357-21-2/dimethyldioctadecylammonium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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