Seven porous chromatographic columns, termed monoliths, and seven nonporous sheets were produced from polymethacrylates. Their surfaces were activated by different densities of butyl and phenyl ligands. We determined the retention times of highly dilute molecular probes in monoliths and accessed contact angles of pure molecular probes of sheets. We calculated surface energies for both systems. We applied theories of Young, Dupre, and van Oss and compared the results of both types of experiments with respect to Lifshitz-van der Waals and Lewis acid and Lewis base contributions and find agreement but an additive constant.