中文关键词:电导法流变温度AOTPEG-200 英文关键词:Conductivity, Rheology, Temperature, AOT, PEG-200 基金项目:聊城大学博士基金(318051327)及聊城大学科技创新基金(201710447031, 201710447032)资助

作者	单位	E-mail
李莎	聊城大学化学与化工学院	1831919928@qq.com
韩梦	聊城大学化学与化工学院
叶梦真	聊城大学化学与化工学院
张骞	聊城大学化学与化工学院
刘杰	聊城大学化学与化工学院	liujielcu@126.com

摘要点击次数:1361 全文下载次数:0 中文摘要: 对表面活性剂双(2-乙基己基)琥珀酸酯磺酸钠 (Aerosol-OT或AOT)、水和聚乙二醇-200 (PEG-200)的体系，用电导、流变学方法等研究了温度和表面活性剂浓度对其有序结构的形成和转变的影响。结果发现在室温下，高AOT浓度溶液中出现凝胶结构。当AOT的浓度固定到400mmol/kg以上时，随着温度的升高，观察到体系外观从透明粘稠到稍浑浊再到透明黏度小的过程，结合AOT的双链结构并通过流变实验验证了网络结构的形成，推测该体系在微观上经历了从凝胶到囊泡再到胶束的转变过程；而当AOT的浓度在200到400mmol/kg之间时，随着温度的升高，出现了凝胶和胶束混合体系到胶束体系的转变过程。 英文摘要: Conductivity and rheological properties of aggregated behaviors of sodium bis(2-ethylhexyl) sulfosuccinate (AOT) in polyethylene glycol 200 (PEG 200) and water mixed solvent media are studied as a function of temperature and AOT concentration. The results show that the system appears network structure of gel at higher AOT concentration and at room temperature. For the system of AOT concentration over 400 mmol/kg, the solution is colorless, transparent and syrupy with no polarized behavior at low temperature, supposed the formation of gel; Then the solution changes a little turbid accompanied by the rapid increase of conductivity with increasing the temperature, indicating the appearance of vesicles; Temperature continues to rise, the solution changes transparent again. So, the AOT solution changes from gel to vesicles, and finally micelles as the temperature increases, and the process is reversible. While for the system of AOT concentration between 200 and 400 mmol/kg, the solution transforms from the coexisting system of gel-micelles to pure micelles system. 查看全文查看/发表评论下载PDF阅读器 相关附件：版权转让声明书 -->