Probing the effect of polymer adsorption on the thermal fluctuations in polymer/polymer systems by specular and off-specular reflection
In this proposal we will study the effect of the adsorption of polymer chains onto solid surfaces on the interfacial width of polymer/polymer system. We expect that the adsorption will tend to suppress the capillary wave contribution of the width (the intrinsic width could also be affected). We will study this by pre-adsorbing the polymer layer, washing the not adsorbed chains and deposing another polymer on top. Moreover by changing he thickness of the films for the adsorbing layer, and in turn the distance of the width from the adsorbing interface, we will try to see the development of the full spectrum of the thermal fluctuations at the interface. The off-specular scattering from the thermal fluctuations will be analysed in term of the DWBA approach. This is in the frame of an ILL PhD student that will be starting in April 2016.
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SFERRAZZA Michele; GUTFREUND Philipp and HAFNER Aljosa. (2016). Probing the effect of polymer adsorption on the thermal fluctuations in polymer/polymer systems by specular and off-specular reflection. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-11-1782
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