Abstract
A semianalytical theory for neutral and charged monodisperse brushes under the strong-stretching limit of the self-consistent-field equation including corrections for finite stretching and nondilute conditions. The strong-stretching limit of the SCF equation is based on assuming at each position in the brush, that is above the grafting interface, and a mean-field approach in the lateral direction, the validity of the equation is V(h) - V(x)=μ(ø(x))-μ(ø(h)). V is the stretching or SCF potential which is a function of distance from the interface, x, with h the brush height. An approach based on the Carnahan-Starling equations-of-state from liquid-state theory for hard sphere mixtures was undertaken. It was observed that charged brushes's increasing charge and decreasing ionic strength have very different effects on the end-density distribution, the maximum of which moves toward the edge of the brush with increasing charge.
Original language | English |
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Pages (from-to) | 6254-6259 |
Number of pages | 6 |
Journal | Macromolecules |
Volume | 41 |
Issue number | 16 |
DOIs | |
Publication status | Published - 26 Aug 2008 |
Externally published | Yes |