title: Networking properties of cyclodextrin-based cross-linked polymers probed by inelastic light-scattering experiments.
abstract: An integrated experimental approach, based on inelastic light-scattering techniques, has been here employed for a multilength scale characterization of networking properties of cyclodextrin nanosponges, a new class of cross-linked polymeric materials built up from natural oligosaccharides cyclodextrins. By using Raman and Brillouin scattering experiments, we performed a detailed inspection of the vibrational dynamics of these polymers over a wide frequency window ranging from gigahertz to terahertz, with the aim of providing physical descriptors correlated to the cross-linking degree and elastic properties of the material. The results seem to suggest that the stiffness of cross-linked polymers can be successfully tuned by acting on the type and the relative amount of the cross-linker during the synthesis of a polymer matrix, predicting and controlling their swelling and entrapment properties. The proposed experimental approach is a useful tool for investigating the structural and physicochemical properties of polymeric network systems.
authors.affiliation: Dipartimento di Fisica, Università di Trento, Povo, Trento, Italy. rossi@science.unitn.it
authors.forename: Barbara
authors.initials: B
authors.lastname: Rossi
authors.forename: Silvia
authors.initials: S
authors.lastname: Caponi
authors.forename: Franca
authors.initials: F
authors.lastname: Castiglione
authors.forename: Silvia
authors.initials: S
authors.lastname: Corezzi
authors.forename: Aldo
authors.initials: A
authors.lastname: Fontana
authors.forename: Marco
authors.initials: M
authors.lastname: Giarola
authors.forename: Gino
authors.initials: G
authors.lastname: Mariotto
authors.forename: Andrea
authors.initials: A
authors.lastname: Mele
authors.forename: Caterina
authors.initials: C
authors.lastname: Petrillo
authors.forename: Francesco
authors.initials: F
authors.lastname: Trotta
authors.forename: Gabriele
authors.initials: G
authors.lastname: Viliani
mesh_terms: D003505:Cyclodextrins / Q000737:chemistry*; D008027:Light; D049329:Nanostructures / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D012542:Scattering, Radiation; D013059:Spectrum Analysis, Raman
chemical_list: D003505:Cyclodextrins; D011108:Polymers