球回転式粘度計によるミセル水溶液のレオロジー測定

摘要

Ultrasonic spectroscopy is applied to the study of micro-structure and molecular dynamics of materials through the measurement of the visco-elastic characteristics in the frequency domain. The observation of the visco-elasticity at the lower frequency limit is important as it yields the fundamental reference of the frequency spectra observed by the ultrasonic spectroscopy. In this paper, we introduce a new experimental technique to give the fundamental visco-elasticity of soft condensed materials, which requires a quite small quantity of samples in a disposable manner. The newly developed viscometer is thus applicable especially to the medical field, such as the rheology measurement of the blood and other body fluids, where the pollution should seriously be prevented.%微量のサンプル量を用い、非接触で粘性を測定する装置を開発した。これを用いて界面活性剤の棒状ミセルおよび球状ミセル水溶液の粘性のずり速度依存性を測定した結果を報告する。