Molecular self-assembly on flat surfaces and inside nano-pores.
Alexandros G. Koutsioubas
Department of Physics, University of Patras, Greece
Vendredi 13/02/2009, 11:00
LLB - Bât 563 p15 (Grande Salle), CEA-Saclay
End grafted polymers (polymer brushes) and Self-Assembled Monolayers (SAM) are two extensively studied systems that permit the controlled modification of interfacial properties at the nanometer scale. In the present talk, three different cases will be examined such as: a) the effect of polymer chain architecture on the self-assembly procedure of polymer brushes b) the unique properties of periodically nano-patterned polymer brushes and c) the formation of SAM’s and polymer brushes inside ordered nano-pores. Using a combination of experimental techniques such as, Surface Plasmon Resonance (SPR) Spectroscopy and neutron reflectometry, the equilibrium properties and formation kinetics of these systems are investigated. In addition coarse-grained computer simulations provide interesting insights about the microscopic mechanisms that are involved. Finally, the physical properties and general characteristics of these systems will be discussed, and their potential implications in various technological applications in the field of nanotechnology will be highlighted.