Structural analysis of polyelectrolyte film absorbing metal ion by SAXS utilizing with X-ray anomalous dispersion effect.
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.
Sugiyama
Masaaki
M
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
Mitsui
Takao
T
Sato
Takashi
T
Akai
Yoshinori
Y
Soejima
Yuji
Y
Orihara
Hiroshi
H
Na
Yang-Ho
YH
Itoh
Keiji
K
Mori
Kazuhiro
K
Fukunaga
Toshiharu
T