日本ゴム協会誌
Print ISSN : 0029-022X
84 巻, 3 号
選択された号の論文の5件中1~5を表示しています
研究論文
総説特集 散乱測定によるソフトマテリアルの解析
総説
  • 小泉 智
    2011 年 84 巻 3 号 p. 87-93
    発行日: 2011年
    公開日: 2011/12/29
    ジャーナル フリー
    Small-angle neutron scattering was employed in order to perform a real time & in-situ observation on a polymerization-induced self-assembly process in in-vivo or in-vitro systems ; precise living anionic polymerization of polystyrene-b-polyisoprene, pre-irradiation radical polymerization of polystyrene onto a polytetrafluoroethylene film, and microbial or enzymatic polymerization of cellulose. The aim of these studies is to clarify self-organizations of macromolecular assemblies appeared in open non-equilibrium systems, which are exposed to external energy and mass flows induced by chemical reactions. The open non-equilibrium systems are believed to be important for understanding pattern formations not only in materials processing in industry but also in living things. Small-angle scattering observed for the systems was investigated according to the methods established for condensed matter physics (fractal and computational analyses), bridging with synthetic chemistry and molecular biology.
  • 斎藤 拓
    2011 年 84 巻 3 号 p. 94-99
    発行日: 2011年
    公開日: 2011/12/29
    ジャーナル フリー
    Light scattering method is powerful to clarify the change of superstructure of elastomers during the deformation process. Reversible deformation of the domain and the spherulite in polyurethane elastomers were revealed by the reversible change of the light scattering patterns during the stretching and recovery processes. Hv light scattering appeared at low strain and the intensity increased with strain in cross-linked elastomers before the strain-induced crystallization, suggesting that the local ordering is generated at low strain and the ordering increases with strain before the strain-induced crystallization. The orientation of rubber in the two-phase plastic/rubber polymer blends can be estimated separately by analyzing the Hv light scattering caused by the local ordering before the strain-induced crystallization.
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