title: A simple two-phase route to silver nanoparticles/polyaniline structures.
abstract: Novel silver nanoparticles/polyaniline composites were obtained through a two-phase water/toluene interfacial reaction. We show that by rigorously controlling the reaction time, different structures of the nanocomposites can be obtained, such as a thin sheet of polyaniline around the silver nanoparticles or a polymer mass with nanoparticles homogeneously embedded within it. Samples were characterized by FT-IR, UV-vis-NIR and Raman spectroscopy, X-ray diffraction, cyclic voltammetry, TEM, and HRTEM. Conductivity and current-voltage characteristics of the nanocomposites were measured, and the results indicate that different properties result from the different structures in which the nanocomposites were formed.
authors.affiliation: Departamento de Química, Universidade Federal do Parana, CP 19081, CEP 81531-990, Curitiba-PR, Brazil.
authors.forename: Marcela M
authors.initials: MM
authors.lastname: Oliveira
authors.forename: Eryza G
authors.initials: EG
authors.lastname: Castro
authors.forename: Carla D
authors.initials: CD
authors.lastname: Canestraro
authors.forename: Daniela
authors.initials: D
authors.lastname: Zanchet
authors.forename: Daniel
authors.initials: D
authors.lastname: Ugarte
authors.forename: Lucimara S
authors.initials: LS
authors.lastname: Roman
authors.forename: Aldo J G
authors.initials: AJ
authors.lastname: Zarbin