title: Dynamic scale theory for characterizing surface morphology of layer-by-layer films of poly(o-methoxyaniline).
abstract: The dynamic scale theory and fractal concepts are employed in the characterization of surface morphological properties of layer-by-layer (LBL) films from poly(o-methoxyaniline) (POMA) alternated with poly(vinyl sulfonic acid) (PVS). The fractal dimensions are found to depend on the procedures to fabricate the POMA/PVS multilayers, particularly with regard to the drying procedures. LBL films obtained via drying in ambient air show a more homogeneous surface, compared to films dried under vacuum or a flow of nitrogen, due to a uniform rearrangement of polymer molecules during solvent evaporation.
authors.affiliation: Faculdade de Ciências e Tecnologia, Universidade Estadual Paulista, CP 467, 19060-900, Presidente Prudente, São Paulo, Brazil.
authors.forename: Nara C
authors.initials: NC
authors.lastname: de Souza
authors.forename: Josmary R
authors.initials: JR
authors.lastname: Silva
authors.forename: Marcelo A
authors.initials: MA
authors.lastname: Pereira-da-Silva
authors.forename: Maria
authors.initials: M
authors.lastname: Raposo
authors.forename: Roberto M
authors.initials: RM
authors.lastname: Faria
authors.forename: José A
authors.initials: JA
authors.lastname: Giacometti
authors.forename: Osvaldo N
authors.initials: ON
authors.lastname: Oliveira
mesh_terms: D000042:Absorption; D000814:Aniline Compounds / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D017709:Fractals; D046911:Macromolecular Substances / Q000737:chemistry*; D008422:Materials Testing; D008567:Membranes, Artificial; D018625:Microscopy, Atomic Force; D011145:Polyvinyls / Q000737:chemistry*; D013451:Sulfonic Acids / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D000814:Aniline Compounds; D046911:Macromolecular Substances; D008567:Membranes, Artificial; D011145:Polyvinyls; D013451:Sulfonic Acids; C008959:lyapolate; C003898:2-anisidine