摘要
以Tween-80/正己醇/辛烷/水体系为研究对象,通过偏振光显微镜法测定相图,确定了该体系40℃时液晶区;用核磁共振氢谱法(2HNMR)验证了Tween-80/正己醇/辛烷/水体系40℃时层状液晶的区域;用小角度X射线衍射方法测定了层状液晶各种组分变化的层间距离;用自旋标记电子自旋共振法(ESR)测定了层状液晶分子排列的有序参数,研究表明:有序参数随着Tween-80含量的增加而增加,随着层状液晶中水含量的增加而减少.
Lyotropic liquid crystals formed from mixed surfactants Tween-80/n-C6H13OH/C8H18/H2O have been used to determine the phase regions by the polarizing microscope at 40℃. The lamellar liquid crystal region of Tween-80/n-C6H13OH/C8H18/H2O was verified at 40℃ by the 2H NMR. The interlayer space of lamellar liquid crystal was determined by small angle X-ray diffraction. ESR was used to determine order parameter of lamellar liquid crystal in the phase diagram. The results showed that order parameter of lamellar liquid crystal the in creasing of Tween-80 content, and decreased with increasing of water content.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2005年第11期80-83,共4页
Journal of Chongqing University
基金
湖北省教育厅重点科研计划项目(2003A003)
关键词
TWEEN-80
正己醇
辛烷
层状液晶
有序参数
层状结构
Tween-80
n-hexyl alcohol
n-octane
lameUar liquid crystal
order parameter
lamellar structure
