title: Molecular orientation and alignment of rubbed poly(vinyl cinnamate) surfaces.
abstract: We observed that weakly and strongly rubbed polyvinyl-cinnamate surfaces align liquid crystal films perpendicular and parallel to the rubbing direction, respectively. Surface-specific sum-frequency vibrational spectroscopy was used to probe molecular orientations and alignments of the rubbed surfaces and provide a molecular-level understanding of the observation.
authors.affiliation: Department of Physics and LiCryL CNR-INFM, University of Calabria, 87036 Rende, Italy.
authors.forename: P
authors.initials: P
authors.lastname: Pagliusi
authors.forename: C Y
authors.initials: CY
authors.lastname: Chen
authors.forename: Y R
authors.initials: YR
authors.lastname: Shen