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首先研究Brij35(十二烷基聚氧乙烯(23)醚)/油酸钠/油酸/水体系的拟三元相图,发现该体系最大的特点是溶致液晶占相图总面积的2/3.对O/W型微乳液进行流动曲线研究,属于牛顿流体.对溶致液晶体系开展了偏光显微镜,SAXS,2H-NMR等方法的研究.当体系组成沿着相图中AA′线改变时,其液晶结构变化的顺序是,立方状液晶→立方状与层状液晶共存→层状液晶→层状液晶与六角状液晶共存→六角状液晶.并且对上述体系系统地开展了流变性质的研究.其结果再一次证实液晶结构随着体系中某组分的改变而发生变化.同时还得到立方液晶和六角状液晶的晶格参数,分别为10.53和5.68 nm.
Firstly, the quasi-ternary phase diagram of Brij35 (sodium laureth-23) / sodium oleate / oleic acid / water system was investigated. It is found that the biggest feature of this system is that the total area of the phase diagram / 3. O / W microemulsion flow curve study, belonging to Newtonian fluid. The lyotropic liquid crystal system has carried out the research of polarization microscope, SAXS, 2H-NMR and other methods. When the composition of the system changes along the AA ’line in the phase diagram, the order of the liquid crystal structure changes is that the cubic liquid crystal coexists with the layered liquid crystal → the layered liquid crystal coexists with the layered liquid crystal and the hexagonal liquid crystal → the hexagonal liquid crystal . And the above system systematically carried out the study of the rheological properties. The results once again confirmed that the liquid crystal structure changes with the change of a component in the system. At the same time, the lattice parameters of cubic liquid crystal and hexagonal liquid crystal were obtained, which were 10.53 and 5.68 nm respectively.