Document Detail

Equation of state of colloids coated by polyelectrolyte multilayers.
MedLine Citation:
PMID:  17279904     Owner:  NLM     Status:  PubMed-not-MEDLINE    
We propose an adaptation of the osmotic stress technique for determining equations of state of colloids covered by polymer films. We describe here the case of silica particles covered by 6 or 7 layers of polyelectrolyte multilayers. The establishment of a pressure-distance curve allows the interpretation of colloidal interactions over more than four orders of magnitude in pressure. This large range allows a clear separation between three distinct regimes: layer compression, brush extension and at very low pressures a regime of weak repulsion. The physical origins of the regimes are discussed and described by models of colloidal interactions.
Monique Dubois; Monika Schönhoff; Annette Meister; Luc Belloni; Thomas Zemb; Helmuth Möhwald
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Publication Detail:
Type:  Journal Article     Date:  2006-11-08
Journal Detail:
Title:  Physical review. E, Statistical, nonlinear, and soft matter physics     Volume:  74     ISSN:  1539-3755     ISO Abbreviation:  Phys Rev E Stat Nonlin Soft Matter Phys     Publication Date:  2006 Nov 
Date Detail:
Created Date:  2007-02-06     Completed Date:  2007-03-20     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101136452     Medline TA:  Phys Rev E Stat Nonlin Soft Matter Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  051402     Citation Subset:  -    
Max-Planck Institute of Colloids and Interfaces, D-14424 Potsdam/Golm, Germany.
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