We present results of a microscopic density functional theory study of wedge filling transitions, at a right-angle wedge, in the presence of dispersionlike wall-fluid forces. Far from the corner the walls of the wedge show a first-order wetting transition at a temperature T(w) which is progressively closer to the bulk critical temperature T(c) as the strength of the wall forces is reduced. In addition, the meniscus formed near the corner undergoes a filling transition at a temperature T(f)

Department of Physical Chemistry Institute of Chemical Technology Prague 166 28 Praha 6 Czech Republic

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