Document Detail


Interface composition of multiple emulsions: rheology as a probe.
MedLine Citation:
PMID:  15379477     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We have investigated the dynamic rheological properties of concentrated multiple emulsions to characterize their amphiphile composition at interfaces. Multiple emulsions (W1/O/W2) consist of water droplets (W1) dispersed into oil globules (O), which are redispersed in an external aqueous phase (W2). A small-molecule surfactant and an amphiphilic polymer were used to stabilize the inverse emulsion (W1 in oil globules) and the inverse emulsion (oil globules in W2), respectively. Rheological and interfacial tension measurements show that the polymeric surfactant adsorbed at the globule interface does not migrate to the droplet interfaces through the oil phase. This explains, at least partly, the stability improvement of multiple emulsions as polymeric surfactants are used instead of small-molecule surfactants.
Authors:
F Michaut; P Perrin; P Hébraud
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Langmuir : the ACS journal of surfaces and colloids     Volume:  20     ISSN:  0743-7463     ISO Abbreviation:  Langmuir     Publication Date:  2004 Sep 
Date Detail:
Created Date:  2004-09-21     Completed Date:  2006-08-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9882736     Medline TA:  Langmuir     Country:  United States    
Other Details:
Languages:  eng     Pagination:  8576-81     Citation Subset:  IM    
Affiliation:
LPM ESPCI, UMR 7615, 10 rue Vauquelin, 75231 Paris Cedex 05, France.
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MeSH Terms
Descriptor/Qualifier:
Acrylates / chemistry*
Emulsions / chemistry*
Hexoses / chemistry*
Molecular Probes / chemistry*
Rheology
Surface Properties
Surface-Active Agents / chemistry*
Water / chemistry
Chemical
Reg. No./Substance:
0/Acrylates; 0/Emulsions; 0/Hexoses; 0/Molecular Probes; 0/Surface-Active Agents; 1338-43-8/sorbitan monooleate; 7732-18-5/Water

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


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