Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10378766 | Journal of Colloid and Interface Science | 2005 | 10 Pages |
Abstract
Binary polymer brushes grafted to Si wafers were prepared from hydrophilic and hydrophobic polymer components, which allow switching the surface properties (as revealed by contact angles) by exposure to varying solvents. The hydrophilic component was poly-2-vinylpyridine; the hydrophobic component was a copolymer of styrene and 2-(4-vinylphenyl)indene containing the photodimerizable phenylindene chromophore. The brushes were prepared via thermal and via photochemical grafting-to methods, which led to distinct layer thicknesses. Structural patterns differing in surface properties were produced and fixed via crosslinking the hydrophobic component by 2Ï+2Ï photodimerization of phenylindene moieties. The patterns were visually observable.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Frank Hoffmann, Thomas Wolff, Sergiy Minko, Manfred Stamm,