Oxygen-Tolerant Photografting for Surface Structuring from Microliter Volumes

Here, we report an oxygen-tolerant photografting techniqueto growpolymer brushes employing microliter volumes of monomer solution underambient conditions. With the key advantages that include spatial control,initiator/catalyst-free nature, and high oxygen tolerance, a seriesof homo-, multiblock, and arbitrary patterned polymer brushes weresuccessfully obtained by photografting. Moreover, a dual-functionalsurface with hydrophilic and hydrophobic properties could easily berealized by one-pot photografting. These results illustrated the practicalityand versatility of this strategy, which will allow nonexperts accessto polymer brush architectures and broaden the potential applicationsof polymer brushes.