Phase structure and rheological properties of a mixed zwitterionic/anionic surfactant system
Phase structure and rheological properties of a mixed zwitterionic/anionic surfactant system
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混合两性离子/阴离子表面活性剂体系的相结构和流变特性
DOI：
10.1039/f19747000163
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发表时间：
1974
期刊：
影响因子：
--
通讯作者：
E. Willis
中科院分区：
文献类型：
--
作者：
D. Saul;G. Tiddy;B. A. Wheeler;P. A. Wheeler;E. Willis
通过光学显微镜和低角X射线散射测定了混合两性离子/阴离子表面活性剂体系十六烷基二甲基铵基丙磺酸盐/十二烷基硫酸钠/水在水相区（90.0%水）的相图;观察到的相是各向同性表面活性剂溶液和六方液晶相。一些水溶液被发现是粘弹性的，并且具有这些性质的溶液的组成边界平行于相边界。N.m.r.的粘弹性溶液的结构进行了研究，并使用一个模型，其中涉及正常的球形胶束和圆柱形胶束的平衡存在的结果进行解释。
The phase diagram of the mixed zwitterionic/anionic surfactant system hexadecyldimethyl-ammoniopropanesulphonate/sodium dodecyl sulphate/water has been determined in the aqueous region (90.0 % water) by optical microscopy and low angle X-ray scattering; the phases observed were an isotropic surfactant solution and a hexagonal liquid crystalline phase. Some aqueous solutions were found to be viscoelastic and the composition boundaries of solutions with these properties were parallel to the phase boundaries. N.m.r. was used additionally to study the structure of the viscoelastic solutions and the results are interpreted using a model which involves the existence of both normal spherical micelles and cylindrical micelles in equilibrium.