Suppression of Hydrophobic Recovery by Plasma Polymer Films with Vertical Chemical Gradients

Vertical chemical gradients extending over a few nanometers were explored. The gradients are based on plasma-polymerized oxygen-containing ethylene (ppOEt) films. Using plasma conditions with low CO2/C2H4 ratio and high energy input, cross-linked films were deposited as base layer, while increasing CO2 and lowering energy input resulted in less cross-linked yet highly functional films as applied as top layer. Aging studies indicate that, in particular, for very thin gradient structures, the cross-linked subsurface zone effectively hinders reorientation of the surface functional groups, thus restricting hydrophobic recovery and oxidation effects

Switzerland and 'Colonialism without Colonies'. Reflections on the Status of Colonial Outsiders.

In this essay the theoretical focus of postcolonial theory has been shifted from the cultures and societies of former formal colonies to those countries that have an explicit self-understanding as an outsider within the European colonial power constellation. Using the example of Switzerland, it analyses the presence and perseverance of colonial structures and power relations in a country that has never been regarded as or understood itself as an official colonial power. In a first step, we compare present debates on colonialism in Switzerland with those in neighbouring countries, i.e. France, Germany, Italy and Austria. In a second step, we trace previous research that postulates a link between Switzerland and colonialism, and apply the concept of ‘colonialism without colonies’, which, in contrast, engages with methods and themes that have emerged from postcolonial studies. Finally, we present a specific case study on ‘Swiss commodity racism’ in order to elucidate the concept ‘colonialism without colonies’