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A Complemental use of SANS and SAXS for the analysis of multi-component hierarchical structure

Yamaguchi, Daisuke; Noda, Yohei; Koizumi, Satoshi; Hasegawa, Yoshio*; Hishinuma, Yukio*; Suzuki, Masashi*; Kodama, Hiroto*; Onuma, Masato*; Oba, Yojiro*; Yuasa, Takeshi*; Sone, Takuo*; Tominaga, Tetsuo*

Nowadays industrial materials tend to include a variety of additives and to be a composite of them to satisfy a high request for intelligent function and durability. Elucidation of such a multi-component and hierarchical structure is really a tough work but indispensable to learn the fundamentals of relation between the structure and property and to attain a reasonable improvement of those materials. Combined use of small-angle neutron scattering (SANS) and small-angle X-ray scattering (SAXS) often gives a good clue to decompose the total scattering of the organic/inorganic composite into the partial scattering from a particular component. Two examples will be demonstrated here for extracting the structural information from the composite specimen via this method; one is the distribution of the dopant nitrogen atoms in the porous photocatalyst and the other is the dispersion state of fillers in the rubber matrix.

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