摘要
本文以非离子表面活性剂十二烷基酚聚氧乙烯醚（ＴＸ－１０）／苯乙烯／水组成的三元体系为研究对象，绘制了三元相图，选取液晶区域作为研究对象，配制系列样品，摄制了纹理照片，用小角Ｘ光衍射法测定了液晶中各种组分变化时的层间距，并结合＾２ＨＮＭＲ谱图和纹理照片的对照以及互为补充的分析，为精确区分液晶结构提供了新的途径。这不仅对于基础理论研究，同时对于日用化工和三次采油都具有一定指导意义。
Lyotropic liquid crystals from nonionic surfactant (TX-10), styrene, and water were studied at 30℃ to determine the phase regions and obtain some typical photographs by using microscope with polarized-light. And the geometrical dimensions were determined by low angle X-ray diffractrion. The X-ray data showed that the structure of mesophase disclosed lamellar liquid crystals with Bragg spacing ratio of 1:1 / 2:1/3…. For these lamellar liquid crystals the results indicated a linear increase of the interlayer spacing with addition of water or styrene and pronounced decrease with addition of TX-10 in the system. The 2H NMR methods were specially applied to determine the exact liquid crystals' structure. It was found that the structure varied from mixed W/O type microemulsions and lamellar liquid crystals to single lamellar liquid crystals to single hexagonal liquid crystals to hexagonal liquid crystals and O / W type microemulsions in the liquid crystal region with the addition of the water. These results were discussed theoretically.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1995年第10期992-999,共8页
Acta Chimica Sinica
基金
国家自然科学基金
中国科学院固体润滑开放室(兰州)资助的项目.
