Séverine Coppee
University of Mons
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Publication
Featured researches published by Séverine Coppee.
Soft Matter | 2011
Séverine Coppee; Sylvain Gabriele; Alain M. Jonas; Jacques Jestin; Pascal Damman
From dewetting and neutron reflectivity experiments, we demonstrate the major influence of chain interdiffusion on the friction properties for a couple of immiscible polymers. The interface between two immiscible polymers, polystyrene (PS) and polydimethylsiloxane (PDMS), was studied by neutron reflectivity and dewetting by using free PS chains and PDMS brushes. Unexpectedly, we found that the PS chains diffuse in the PDMS brushes at temperatures well below the glass transition temperatures of PS, the dynamics being largely determined by the grafting density of the brush. These observations strongly suggest that the puzzling ageing of PS thin films observed from dewetting experiments can be directly related to modifications of the PS/PDMS interface.
conference of the industrial electronics society | 2006
Gwennaelle Derue; Sylvain Gabriele; Fabien Monteverde; Séverine Coppee; Pascal Damman; Mathieu Surin; Victor Geskin; Philippe Leclère; Roberto Lazzaroni
In this paper, we study the behavior of thin films of a semiconducting polymer, poly(3-hexylthiophene)-P3HT under the application of a physical constraint. We have rubbed P3HT thin films with a velvet cloth, which leads to the alignment of the polymer chains along the sliding direction at the film surface. Annealing the rubbed films up to the crystallization temperature, leads to the propagation of the surface orientation to the whole film. In order to gain spatial and geometrical control on the rubbing process, we have used nano-rubbing. Using the stylus of an AFM working in contact mode, the nano-rubbing process can be performed locally on an area of defined size. These chain-aligned structures can be permanent thanks to the crystallization process. This study opens interesting opportunities to control the molecular order within the channel of field-effect transistors
Physical Review Letters | 2007
Pascal Damman; Sylvain Gabriele; Séverine Coppee; Sylvain Desprez; D. Villers; Thomas Vilmin; Elie Raphaël; Moustafa Hamieh; Samer Al Akhrass; Giinter Reiter
Journal of the American Chemical Society | 2005
Gwennaelle Derue; Séverine Coppee; Sylvain Gabriele; Mathieu Surin; Victor Geskin; Fabien Monteverde; Philippe Leclère; Roberto Lazzaroni; Pascal Damman
Journal of Polymer Science Part B | 2006
Sylvain Gabriele; Pascal Damman; Séverine Sclavons; Sylvain Desprez; Séverine Coppee; Günter Reiter; Moustafa Hamieh; Samer Al Akhrass; Thomas Vilmin; Elie Raphaël
Surface Science | 2012
Frédéric Henry; Fabian Renaux; Séverine Coppee; Roberto Lazzaroni; Nicolas Vandencasteele; François Reniers; Rony Snyders
Journal of the American Chemical Society | 2002
Pascal Damman; Séverine Coppee; Victor Geskin; Roberto Lazzaroni
Macromolecules | 2004
Séverine Coppee; Victor Geskin; Roberto Lazzaroni; Pascal Damman
European Physical Journal-special Topics | 2009
Sylvain Gabriele; Séverine Coppee; Günter Reiter; Pascal Damman
Physica Status Solidi (c) | 2008
Nora Dahmouchène; Séverine Coppee; Michel Voué; Joël De Coninck