RT Journal Article
T1 Molecular mass dependence of adsorbed amount and hydrodynamic thickness of polyelectrolyte layers.
A1 Seyrek, Emek
A1 Hierrezuelo-Osorio, José Manuel
A1 Sadeghpour, Amin
A1 Szilagyi, Istvan
A1 Borkovec, Michal
K1 Polielectrólitos
K1 Coloides
K1 Nanopartículas
AB Highly charged polyelectrolytes adsorbed on oppositely charged colloidal particles are investigated by electrophoresis and dynamic light scattering. The dependence of the adsorbed amount and of the hydrodynamic layer thickness on the molecular mass and the salt level is analyzed. The adsorbed amount increases with increasing salt level and decreases with increasing molecular mass. The hydrodynamic layer thickness is independent of the molecular mass at low salt levels, but increases with the molecular mass as a power law with an exponent 0.10   0.01 at high salt. The same behavior was observed for different polyelectrolytes and substrates and therefore is suspected to be generic. Due to semi-quantitative agreement with computer simulations carried out by Kong and Muthukumar in 1998, the observed behavior is interpreted with conformational changes of single adsorbed polyelectrolyte chains.
PB Royal Society of Chemistry
YR 2011
FD 2011-06-20
LK https://hdl.handle.net/10630/33296
UL https://hdl.handle.net/10630/33296
LA eng
NO Phys. Chem. Chem. Phys., 2011, 13, 12716–12719
NO https://v2.sherpa.ac.uk/id/publication/18031
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026