Thermoresponsive Viscoelasticity of Sodium 1-Oxo-1-[4-(tridecafluorohexyl)phenyl]-2-hexanesulfonate Aqueous Solutions
Thermoresponsive Viscoelasticity of Sodium 1-Oxo-1-[4-(tridecafluorohexyl)phenyl]-2-hexanesulfonate Aqueous Solutions
复制标题
1-Oxo-1-[4-(十三氟己基)苯基]-2-己磺酸钠水溶液的热响应粘弹性
作者：
K. Tobita;H. Sakai;Y. Kondo;N. Yoshino;M. Iwahashi;N. Momozawa;M. Abe
研究了一种含氟碳链和碳氢链的氟杂化型表面活性剂1-oxo-1-[4-(tridecafluorohexyl)phenyl]-2-hexanesulfonate的水溶液的热粘度行为或变温粘度。当浓度在10wt%左右时，FC6-HC4溶液表现出粘弹性行为。进一步研究了10wt%溶液的粘度与温度的关系，发现粘度随温度的升高而增加约102倍，在温度从6℃升高到36℃时出现最大值，然后下降约10-4倍，在温度达到℃时进一步升高。此外，粘弹性参数tanδ在36℃时出现最小值。换句话说，FC6-HC4的水溶液表现出热响应性粘弹性行为。
The thermal viscosity behavior or temperature-dependent viscosity of an aqueous solution of sodium 1-oxo-1-[4-(tridecafluorohexyl)phenyl]-2-hexanesulfonate (FC6-HC4), a fluoro-hybrid type surfactant, which has a fluorocarbon chain and a hydrocarbon chain in a molecule, was examined. The FC6-HC4 solution showed viscoelastic behavior at concentrations around 10 wt %. Further study on the temperature dependence of the viscosity of a 10 wt % solution revealed that the viscosity increased about 102 times, showing a maximum as temperature rose from 6 to 36 °C, and then decreased about 10-4 times with further rising at in temperatures up to 64 °C. Moreover, tan δ, a parameter for viscoelasticity, exhibited a minimum at 36 °C. The phenomenon found in this work was reversible with respect to temperature change. In other words, an aqueous solution of FC6-HC4 was found to show thermoresponsive viscoelastic behavior.