Fatma Waseefa, Khan Ziya Ahmad, Dar Aijaz Ahmad
Department of Chemistry, Aligarh Muslim University, Aligarh-202002, India.
J Phys Chem B. 2007 Aug 2;111(30):8860-7. doi: 10.1021/jp070782j. Epub 2007 Jul 11.
In this paper, we are reporting the influence of addition of aromatic acids (anthranilic and benzoic acid) and their sodium salts on the micellar morphological changes in three cationic gemini surfactant solutions, viz. 5 mM tetramethylene-1,4-bis(N-hexadecyl-N,N-dimethylammonium bromide), 10 mM pentamethylene-1,5-bis(N-hexadecyl-N,N-dimethylammonium bromide), and 10 mM hexamethylene-1,6-bis(N,-hexadecyl-N,N-dimethylammonium bromide). The solubilization site of the counterions (obtained from the additives) near the micellar surface are inferred by 1H NMR. The behavior is explained in the light of binding of counterions to the micelle as well as the nature of the functional group attached to the additive.
在本文中，我们报道了添加芳香酸（邻氨基苯甲酸和苯甲酸）及其钠盐对三种阳离子双子表面活性剂溶液胶束形态变化的影响，这三种阳离子双子表面活性剂分别是5 mM的四亚甲基-1,4-双（N-十六烷基-N,N-二甲基溴化铵）、10 mM的五亚甲基-1,5-双（N-十六烷基-N,N-二甲基溴化铵）和10 mM的六亚甲基-1,6-双（N-十六烷基-N,N-二甲基溴化铵）。通过1H NMR推断胶束表面附近抗衡离子（来自添加剂）的增溶位点。根据抗衡离子与胶束的结合以及添加剂所连接官能团的性质对该行为进行了解释。
