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Polyelectrolyte shells of copolymer micelles in aqueous solutions: a Monte Carlo study
Filip Uhlík1, Zuzana Limpouchová, Karel Jelínek
1Department of Physical and Macromolecular Chemistry, School of Science, Charles University, Albertov 6, 128 43 Praha 2, Czech Republic.
The Journal of Chemical Physics
|July 21, 2004
Abstract:
Multimolecular micelles, formed by polystyrene-block-poly(methacrylic acid) in water, are studied by lattice Monte Carlo method. Electrostatic interactions are calculated in the mean-field approximation by solving the Poisson-Boltzmann equation. The model is parametrized according to available experimental data. The dependence of micellar size on pH and ionic strength is calculated and compared with experimental data. A special attention is devoted to the behavior in solutions with a low ionic strength.