25C下测定了十六烷基三甲基溴化铵/正丁醇/H_2O体系的相图.使用2~HNMR方法,并结合偏光纹理照片,研究了相图中液晶区域的相结构变化,结果表明,液晶区内部的液晶均以层状形式存在,该区域的边缘部分除有层状液晶存在外,还存在大量的各向同性胶束.ESR研究表明:自旋标记探针分子5NS在液晶相中的结构多数为0.37±0.01;在油包水胶束区内,探针分子运动的各向异性程度随着水含量的增多而增加,探针分子在液晶相中运动的各向异性程度大于其在油包水中的程度. The phase diagram of cetyltrimethylammonium bromide / n-butanol / H 2 O system was determined at 25 ° C. The phase structure of the liquid crystal region in the phase diagram was studied by using 2 HNMR method combined with polarized texture photographs. The results It is shown that the liquid crystal in the liquid crystal region exists in a layered form and a large amount of isotropic micelles exist in the edge of the region besides the layered liquid crystal.ESR studies show that the spin- In the water-in-oil micellar region, the degree of anisotropy of the probe molecules increases with the increase of the water content. The degree of anisotropy of the probe molecules in the liquid crystal phase Greater than its degree in the water-in-oil.