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Additional recommended knowledge
Polymer brush is a layer of polymers attached with one end to a surface. The brushes may be either in a solvent state, when the dangling chains are submerged into a solvent, or in a melt state, when the dangling chains completely fill up the space available. Additionally, there is a separate class of polyelectrolyte brushes, when the polymer chains themselves carry an electrostatic charge.
The brushes are often characterized by the high density of grafted chains. The limited space then leads to a strong extension of the chains, and unusual properties of the system. Brushes can be used to stabilize colloids, reduce friction between surfaces, and to provide lubrication in artificial joints.
Categories: Condensed matter physics | Soft matter | Polymer chemistry
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Polymer_brush". A list of authors is available in Wikipedia.|