Controlled polystyrene brushes grown on AFM tipC. Devaux and J.-P. Chapel
Polymeric Materials and Biomaterials Laboratory ( CNRS UMR 5627) , Claude Bernard - Lyon 1 University, ISTIL 43 boulevard du 11 Novembre 1918, 69622 Villeurbanne Cedex, France Jean-Paul.Chapel@univ-lyon1.fr
(Received 9 July 2002 and Received in final form 16 December 2002 Published online: 20 March 2003)
We report here the first successful growth of Polystyrene brushes directly from the apex of a conventional AFM tip using a Langmuir-Blodgett deposition technique [1,2] associated with a controlled free radical polymerization. The efficiency of the grafting together with the possibility to form multi-layers are checked through AFM force measurements between a bare or functionalized tip and a silicon wafer in water or xylene.
82.35.-x - Polymers: properties; reactions; polymerization.
68.37.Ps - Atomic force microscopy (AFM).
68.47.Pe - Langmuir-Blodgett films on solids, polymers on surfaces, biological molecules on surfaces .
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2003