期刊论文

Yang, HM

中文

化学物理学报(英文版)

1674-0068

2005

18

2

223-227

10.3969/j.issn.1674-0068.2005.02.014

ProjectsupportedbytheChinaPostdoctoralScienceFoundation（2003034429）andtheHubeiProvincialDepartmentofEducation China（2003A003）；

本校为第一且通讯机构

研究了层状液晶的层状结构及有序性,用偏振光显微镜法确定了辛烷基苯酚聚氧乙烯醚(TritonX-100)与正癸醇体系25℃时层状液晶的区域,绘制了部分相图,并用核磁共振氢谱法(2H-NMR)进一步验证;用自旋标记电子自旋共振法测定了层状液晶分子排列的有序参数,研究结果显示,不同组分TritonX-100/n-C10H21OH/H2O体系层状液晶的超精细偶合常数基本相同,表明层状液晶中的微极性是一致的.而有序参数随着TritonX-100含量的增加而增加,随着层状液晶中水含量的增加而减少;用小角度X射线衍射方法测定了层状液晶的层间距离,并计算了水分子在层状液晶中的渗透率,其渗透率约为50%.

Order character and lamellar structure of TritonX-100/n-C 10H 21 OH/H 2O lamellar liquid crystal were investigated. Partial phase diagram of TritonX-100/C 10H 21OH/H 2O was measured at 25°C by the polarizing microscope, and lamellar structure of the lamellar liquid crystal was verified by the 2H NMR spectra. The ESR spin probe method was used to detect the changes in the lamellar liquid crystal. A stearic acid, 5-doxylstearic acid, was used as the spin probe. The values of hyperfine coupling constant and order parameter of lamellar liquid crys...