中文摘要：

研究了十六烷基三甲基水杨酸铵水溶液在稀溶液和亚浓溶液范围的电导和流变行为。体系的电导率一浓度曲线显示2个转折点：第一个转折点对应临界胶束浓度（cmc），第二个对应体系开始形成棒状胶束的浓度。计算了胶束化的、热力学函数变化；证实胶束化过程主要来自于焓驱动。流变实验表明：所有体系均显示剪切稀化行为；溶液质量摩尔浓度高于119mmol·kg^-1时，体系符合Maxwell流体行为，具有单一结构弛豫时间；体系的高黏度来自于短棒状胶束之间的链接而不是缠结的蠕虫状胶束。

英文摘要：

The conductivity and rheological behaviors of aqueous solution of cetyltrimetylammonium salicylate in dilute and semidilute range were studied. Profile of plot of conductivity vs. concentration of the system shows two inflection points. The first inflection point corresponds to the critical micelle concentration （cmc） ,while the second corresponds to the concentration that the rodlike micelles begin to form. The changes of thermodynamic functions of micellization were calculated and the results showed that the micellization is an enthalpy - driven process. The steady- state rheological experiment showed that all systems exhibit shear thinning behavior. When the mass mole concentration of the system is higher than 119 mmol · kg-1, its rheological behavior is in line with Maxwell fluid behavior with a single stress relaxation time. The high viscosity behavior is caused by the linkages between short rodlike micelles rather than entangled wormlike micelles.