title: Surfaces energies of monoliths by inverse liquid chromatography and contact angles.
abstract: 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, Dupré, 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.
authors.affiliation: University of Natural Resources and Life Sciences , Vienna, Austria.
authors.forename: Ingeborg
authors.initials: I
authors.lastname: Bednar
authors.forename: Eva
authors.initials: E
authors.lastname: Berger
authors.forename: Nika Lendero
authors.initials: NL
authors.lastname: Krajnc
authors.forename: Jana
authors.initials: J
authors.lastname: Vidič
authors.forename: Aleš
authors.initials: A
authors.lastname: Podgornik
authors.forename: Alois
authors.initials: A
authors.lastname: Jungbauer
authors.forename: Rupert
authors.initials: R
authors.lastname: Tscheliessnig
mesh_terms: D002853:Chromatography, Liquid / Q000379:methods*; D011109:Polymethacrylic Acids / Q000737:chemistry; D013499:Surface Properties
chemical_list: D011109:Polymethacrylic Acids; C030613:polymethacrylic acid