Schüwer, NicolasKlok, Harm-Anton2010-10-072010-10-072010-10-07201010.1002/adma.201000377https://infoscience.epfl.ch/handle/20.500.14299/55267WOS:000281328500004Benzo-15-crown-5 functionalized polymer brushes prepared via surface-initiated atom transfer radical polymerization are used as the active layer in a potassium-selective quartz crystal microbalance sensor. The polymer brushes allow the selective detection of potassium ions, even in the presence of a large excess of sodium ions and the sensitivity of the sensor can be tuned by varying the brush thickness.Transfer Radical PolymerizationSelf-Assembled MonolayersChemical SensorsCopolymerstext::journal::journal article::research article