G-1-1 ナノ隙間における液体の粘弾性と剪断配向特性の同時計測法に関する研究(G-1 マイクロナノ理工学,口頭発表:マイクロナノ理工学)

概要

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Liquids confined in nanometer-sized gap width have characteristic viscoelastic properties. In our previous study, we have developed highly-sensitive shear force measuring method, which we called the "fiber wobbling method (FWM)", and revealed that liquid polymers exhibit enhanced viscoelasticity when they are sheared. Although mechanisms to explain these phenomena must involve molecular orientation confined in the gap, details are not clarified. In this study, we succeeded in simultaneously measuring viscoelasticity and molecular orientation of confined liquid crystal using FWM combined with birefringence measurement. Our experimental results showed that the relationship between nanometer-sized gap widths and viscoelasticity strongly depends on the molecular orientation.
一般社団法人日本機械学会の論文
2011-03-18