Journal of the American Chemical Society · 2011 · 156 citations · 35 references
Natural SciencesChemistryMaterials SciencePolymer ChemistrySurface ChemistrySurface ScienceNanostructured SurfacesPolymer Thin FilmsSelf-assemblySurface FunctionalizationSurface ModificationSurface ReactivityLong-range OrderPolymer Self-assemblyRedox GradientsSelf-assembled Thin FilmsSelf-assembling MaterialsSelf-assembling PolymersSurface Self-assemblySurface-initiated Polymerization
Facile access to complex systems is crucial to generate the functional materials of the future. Herein, we report self-organizing surface-initiated polymerization (SOSIP) as a user-friendly method to create ordered as well as oriented functional systems on transparent oxide surfaces. In SOSIP, self-organization of monomers and ring-opening disulfide exchange polymerization are combined to ensure the controlled growth of the polymer from the surface. This approach provides rapid access to thick films with smooth, reactivatable surfaces and long-range order with few defects and high precision, including panchromatic photosystems with oriented four-component redox gradients. The activity of SOSIP architectures is clearly better than that of disordered controls.
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