The University of Osaka · 화학
사토 다카히로 교수의 연구실은 고분자 과학과 고분자 상전이 현상에 중점을 두고 있으며, 특히 고분자 사슬의 나선 구조와 이들의 물리적·화학적 성질 간의 상관관계를 중심으로 연구를 진행하고 있습니다. 다양한 고분자 시스템, 예를 들어 킬로산, 폴리스티렌/폴리비닐메틸에터 혼합계, 폴리실릴렌 등에서의 광학 활성 나선 구조와 리아웃로픽 콜로이드 상태의 형성 메커니즘을 다룹니다. 빛 산산분산 및 굴절도 측정을 통한 고분자 구조 분석 기법을 응용하여, 고분자 고체의 상전이, 이면계 자유 에너지, 확산 계수 등에 대한 정량적 이해를 추구하고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
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
