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Tuning the thickness of polymer brushes grafted from nonlinearly growing multilayer assemblies

: Wischerhoff, E.; Glatzel, S.; Uhlig, K.; Lankenau, A.; Lutz, J.-F.; Laschewsky, A.


Langmuir. The ACS journal of surfaces and colloids 25 (2009), No.10, pp.5949-5956
ISSN: 0743-7463
ISSN: 1520-5827
Journal Article
Fraunhofer IAP ()
Fraunhofer IBMT ()

A new versatile method for tuning the thickness of surface-tethered polymer brushes is introduced. It is based on the combination of polyelectrolyte multilayer deposition and surface-initiated atom transfer radical polymerization. To control the thickness of the brushes, the nonlinear growth of certain polyelectrolyte multilayer systems is exploited. The method is demonstrated to work with different polyelectrolytes and different monomers. The relevance for applications is demonstrated by cell adhesion experiments oil grafted thermoresponsive polymer layers with varying thickness.