Theoretical Approaches to Neutral and Charged Polymer Brushes

Abstract

Neutral or charged polymers that are densely end-grafted to surfaces form brush-like structures and are highly stretched under good-solvent conditions. We discuss and compare relevant results from scaling models, self-consistent-field methods and MD simulation techniques and concentrate on the conceptual simple case of planar substrates. For neutral polymers the main quantity of interest is the brush height and the polymer density profile, which can be well predicted from self-consistent calculations and simulations. Charged polymers (polyelectrolytes) are of practical importance since they are soluble in water. Counterion degrees of freedom determine the brush behavior in a decisive way and lead to a strong and non-linear swelling of the brush.

36 pages, 13 figures, Advances in Polymer Science (2005)-in press

References in corpus (2)

• Statics and Dynamics of Strongly Charged Soft Matter
• Variational theory for a single polyelectrolyte chain revisited

Cited by in corpus (3)

• Polydisperse polymer brushes: internal structure, critical behavior, and interaction with flow
• Dissipative particle dynamics study of solvent mediated transitions in pores decorated with tethered polymer brushes in the form of stripes
• Solvation force between tethered polyelectrolyte layers. A density functional approach