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O from diffuse neutron scattering measurementWada, Tamotsu*; Sakuma, Takashi*; Sakai, Ryutaro*; Uehara, Hiroyuki*; Xianglian*; Takahashi, Haruyuki*; Kamishima, Osamu*; Igawa, Naoki; Danilkin, S. A.*
Solid State Ionics, 225, p.18 - 21, 2012/10
Times Cited Count：12 Percentile：44.07(Chemistry, Physical)Diffuse neutron scattering measurement on AgO crystals was performed at 8 K and 295 K. The observed diffuse scattering intensities were analyzed by including the correlation effects among thermal displacements of atoms in AgO. Using the values of correlation effects among neighboring atoms and the values of Debye-Waller temperature parameter, force constants among first, second and third nearest neighboring atoms have been evaluated.
Sawada, Shinichi; Yamaguchi, Daisuke; Putra, A.; Koizumi, Satoshi; Maekawa, Yasunari
no journal, ,
In order to develop the novel polymer electrolyte membranes (PEMs) with high performances, it is important to clarify the structures of conventional PEMs. In this study, we investigated the structures of the radiation grafted PEMs based on poly(ethylene-co-tetrafluoroethylene) (ETFE) films by a small angle neutron scattering (SANS) technique. From the SANS profile, the shoulder peak was observed at the wave number q
=0.16nm
. This result suggest that the domains containing poly(styrene sulfonic acid) (PSSA) graft chains should exist at constant intervals, corresponding to the correlation distance L=2
/q=39 nm. The distance of ETFE lamellar stacks was reported to 27 nm, which is somewhat close to L. This indicates that the PSSA graft chains were introduced in the interfacial regions in lamellar stacks.
