The University of Osaka · Chemistry
Professor Takahiro Sato's research lab specializes in the physical chemistry of macromolecules, with a focus on the structural dynamics and solution behavior of complex polymers and polysaccharides. Key research directions include the conformational analysis of helical polymers—such as xanthan and polysilylenes—using light scattering and scattering techniques, as well as the thermodynamics and kinetics of phase separation in polymer blends. The lab also investigates lyotropic liquid crystalline states in polyisocyanates, combining experimental methods with theoretical modeling to understand self-assembly and interfacial phenomena in soft matter systems.
Figures are computed from collected data and may differ slightly.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDouble-stranded helix of xanthan: dimensional and hydrodynamic properties in 0.1 M aqueous sodium chlorideTakahiro Sato, Takashi Norisuye, and Hiroshi FujitaCite this: Macromolecules 1984, 17, 12, 2696–2700Publication Date (Print):December 1, 1984Publication History Published online1 May 2002Published inissue 1 December 1984https://pubs.acs.org/doi/10.1021/ma00142a043https://doi.org/10.1021/ma00142a043research-articleACS PublicationsRequest reuse permi
The dynamics of concentration fluctuation in a deuterated polystyrene/poly(vinylmethylether) blend system has been studied by the temperature jump and also by the reverse quench light scattering techniques. The growth or decay rate R(q) in Cahn–Hilliard–Cook’s equation is almost proportional to the square of scattering wave vector. This indicates that the interfacial free energy contribution to the concentration fluctuation dynamics in the wavelength range examined is very small. The interdiffus
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTriple helix of Schizophyllum commune polysaccharide in dilute solution. 5. Light scattering and refractometry in mixtures of water and dimethyl sulfoxideTakahiro Sato, Takashi Norisuye, and Hiroshi FujitaCite this: Macromolecules 1983, 16, 2, 185–189Publication Date (Print):February 1, 1983Publication History Published online1 May 2002Published inissue 1 February 1983https://doi.org/10.1021/ma00236a006Request reuse permissionsArticle Views311Altmetric
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolyisocyanates and the interplay of experiment and theory in the formation of lyotropic cholesteric statesTakahiro Sato, Y. Sato, Y. Umemura, Akio Teramoto, Y. Nagamura, J. Wagner, D. Weng, Y. Okamoto, K. Hatada, and Mark M. GreenCite this: Macromolecules 1993, 26, 17, 4551–4559Publication Date (Print):August 1, 1993Publication History Published online1 May 2002Published inissue 1 August 1993https://pubs.acs.org/doi/10.1021/ma00069a021https://doi.org/
This article reviews recent advances in research of helical conformations of optically active polysilylenes in solution. The helical conformation induces strong circular dichroism, chain stiffness, and liquid crystallinity in polysilylene chains, and it sensitively affects electronic state in the σ-conjugated silicon backbone. The helical conformation is determined by the internal rotation potential of the silicon backbone, and it turns out that the internal potential remarkably depends on the c
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