title: Structural analysis of polyelectrolyte film absorbing metal ion by SAXS utilizing with X-ray anomalous dispersion effect.
abstract: A distribution of Cu ions in polyelectrolyte film (Nafion) is directly observed with a small-angle X-ray scattering (SAXS) method utilizing an X-ray anomalous dispersion effect. A partial structure factor of the Cu ions, GAA(q), can be derived from the SAXS profiles obtained by scanning the incident X-ray energy around the Cu K absorption edge. GAA(q) has two peaks, indicating that the Cu ions hierarchically distribute in Nafion film. In addition, a standard SAXS also shows that Nafion film has a hierarchical structure. These results mean that the Cu ions locate in the domain where the hydrophilic bases aggregate.
authors.affiliation: Research Reactor Institute, Kyoto University, Osaka 590-0494, Japan, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan. sugiyama@rri.kyoto-u.ac.jp
authors.forename: Masaaki
authors.initials: M
authors.lastname: Sugiyama
authors.forename: Takao
authors.initials: T
authors.lastname: Mitsui
authors.forename: Takashi
authors.initials: T
authors.lastname: Sato
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Akai
authors.forename: Yuji
authors.initials: Y
authors.lastname: Soejima
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Orihara
authors.forename: Yang-Ho
authors.initials: YH
authors.lastname: Na
authors.forename: Keiji
authors.initials: K
authors.lastname: Itoh
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Mori
authors.forename: Toshiharu
authors.initials: T
authors.lastname: Fukunaga