The adsorption of six symmetrical cationic (dimethylammonium bromide) gemini surfactants with four different partially fluorinated chains at three different surfaces the air/water, the hydrophilic silica/water, and the hydrophobic (octadecyltricholorosilane (OTS))/water has been investigated by neutron reflectometry. The corresponding single chain trimethylammonium bromides have also been studied at the two solid surfaces. Four of the ...
