Table 1: Contact angles and surface energies of solid surfaces.

Surface

Polystyrene95.5 ± 1.259.3 ± 2.49.8 ± 1.343.80.20.00.043.8
Glass13.6 ± 1.712.9 ± 2.117.0 ± 0.942.50.853.412.855.3

and are on average the angles formed by water, formamide, and -bromonaphthalene, respectively,
where and are, respectively, the Lifshitz-van der Waals dispersion component, electron acceptor (acid) and electron donor (basic) parameters, Lewis acid-base bonds, and the total surface energy of the solid substrates.