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RESEARCH PRODUCT
Reactive surface coatings based on polysilsesquioxanes: universal method toward light-responsive surfaces.
Ji-yeon ChoiFlorian D. JochumDaniel KesslerPatrick TheatoPatrick TheatoKookheon Charsubject
SpiropyranMaterials scienceSubstrate (electronics)engineering.materialPhotochemistryContact anglechemistry.chemical_compoundCoatingAzobenzenechemistryvisual_artengineeringvisual_art.visual_art_mediumSurface modificationGeneral Materials ScienceWettingPolycarbonatedescription
Reactive surface coatings were used as an ideal precursor coating for the fabrication of three different photoswitchable surface coatings in parallel. Different light-responsive moieties, such as azobenzene, salicylideneaniline, and spiropyran, were immobilized on glass, polycarbonate, and steel surfaces. Independent from the underlying substrate, wettability could be switched reversibly by UV irradiation. The maximum switching range was obtained after functionalization of the reactive coating with spiropyran, resulting in a contact angle difference between the two isomeric states of almost 30°.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-01-04 | ACS applied materialsinterfaces |