Thickness and density profiles of polyelectrolyte brushes: dependence on grafting density and salt concentration.
Phys Rev Lett
; 93(14): 148301, 2004 Oct 01.
Article
em En
| MEDLINE
| ID: mdl-15524848
ABSTRACT
We have performed neutron reflectivity measurements on a monolayer of charged diblock copolymers in a Langmuir trough, and determined precise density profiles of the polyelectrolyte brush at different densities. We obtain profiles in good agreement with existing self-consistent field computations, both for the osmotic and the salted brush regime. We show that the osmotic brush's thickness increases with density.
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01-internacional
Base de dados:
MEDLINE
Assunto principal:
Poliestirenos
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Eletrólitos
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2004
Tipo de documento:
Article
País de afiliação:
França