title: 3D solid supported inter-polyelectrolyte complexes obtained by the alternate deposition of poly(diallyldimethylammonium chloride) and poly(sodium 4-styrenesulfonate).
abstract: This work addresses the formation and the internal morphology of polyelectrolyte layers obtained by the layer-by-layer method. A multimodal characterization showed the absence of stratification of the films formed by the alternate deposition of poly(diallyldimethylammonium chloride) and poly(sodium 4-styrenesulfonate). Indeed the final organization might be regarded as three-dimensional solid-supported inter-polyelectrolyte films. The growth mechanism of the multilayers, followed using a quartz crystal microbalance, evidences two different growth trends, which show a dependency on the ionic strength due to its influence onto the polymer conformation. The hydration state does not modify the multilayer growth, but it contributes to the total adsorbed mass of the film. The water associated with the polyelectrolyte films leads to their swelling and plastification. The use of X-ray photoelectron spectroscopy has allowed for deeper insights on the internal structure and composition of the polyelectrolyte multilayers.
authors.affiliation: Departamento de Química Física I-Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain.
authors.forename: Eduardo
authors.initials: E
authors.lastname: Guzmán
authors.affiliation: Department of Physics - Cavendish Laboratory, University of Cambridge, J. J. Thomson Avenue, CB3 0HE Cambridge, United Kingdom.
authors.forename: Armando
authors.initials: A
authors.lastname: Maestro
authors.affiliation: Istituto per l'Energetica e le Interfasi - U.O.S. Genova, Consiglio Nazionale delle Ricerche, Via De Marini 6, 16149 Genova, Italy.
authors.forename: Sara
authors.initials: S
authors.lastname: Llamas
authors.affiliation: Departamento de Química Inorgánica y Química Técnica - Facultad de Ciencias Universidad Nacional de Educación a Distancia, C/ Senda del Rey 9, 28040 Madrid.
authors.forename: Jesús
authors.initials: J
authors.lastname: Álvarez-Rodríguez
authors.affiliation: Departamento de Química Física I-Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain.
authors.forename: Francisco
authors.initials: F
authors.lastname: Ortega
authors.affiliation: Departamento de Química Inorgánica y Química Técnica - Facultad de Ciencias Universidad Nacional de Educación a Distancia, C/ Senda del Rey 9, 28040 Madrid.
authors.forename: Ángel
authors.initials: Á
authors.lastname: Maroto-Valiente
authors.affiliation: Departamento de Química Física I-Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; Instituto Pluridisciplinar, Universidad Complutense de Madrid Avda. Juan XXIII 1, 28040 Madrid, Spain.
authors.forename: Ramón G
authors.initials: RG
authors.lastname: Rubio
keywords: charge compensation; hydration; polyelectrolyte multilayers; stratification; swelling