摘要
研究了正离子表面活性剂 CTAB与负离子表面活性剂 SDS混合系统的双水相( ATPS)与液晶 ( LC)结构的关系。发现三元相图中的 LC区包容了 ATPS区。 SDS与CTAB以 1∶ 2或 2∶ 1摩尔比混合时 ,其水溶液系统在适当温度下能形成 ATPS或 LC。同时利用六角形结构模型从微观角度解释了这一配比对系统形成 ATPS或 L C结构的重要性。发现盐对 ATPS区及偏光区有重要影响。
The relationship between aqueous two phase system (ATPS) and liquid crystal (LC) of cationic and anionic surfactants mixture was studied.It was found that the ATPS region was one part of the LC region. If SDS and CTAB was mixed in the mole ratio of 1∶2 or 2∶1, their aqueous system would form ATPS or LC at proper temperature. By means of 2 D hexagonal arrangement of molecules, the importance was discussed for the system to form ATPS or LC in the ratio of 1∶2 or 2∶1. Otherwise, It was also found that salt had an important influence on the ATPS region and LC region.
出处
《青岛科技大学学报（自然科学版）》
CAS
2003年第5期387-390,共4页
Journal of Qingdao University of Science and Technology:Natural Science Edition
关键词
表面活性剂
正离子
双水相
液晶
负离子
aqueous two phase system
liquid crystal
cationic surfactant
anionic surfactant
