表面活性离子液体溴化N-十二烷基异喹啉与非离子表面活性剂Triton X-100在水溶液中的混合胶束.pdf

物理化学学报( Yuli Huaxue Xuebao)
Acta Phys. -Chim. Sin. 2016, 32(1), 356-364
Januar
Article]
doi:10.3866/PKU.WHXB201512012
www.whxb.pku.edu.cn
表面活性离子液体溴化N十二烷基异喹啉与非离子表面活性剂
Triton X-100在水溶液中的混合胶束
张晓红许红岩葛玲玲郭荣
(扬州大学化学化工学院,江苏扬州225002)
摘要:用等温滴定微量热法测定表面活性离子液体溴化N十二烷基异喹啉( C, piquin]Br)与非离子表面活性剂
Triton X-100混合物在水溶液中的临界胶束浓度。并以H核磁共振(NMR)和二维核 Overhauser效应增强谱
(2 D NOESY)研究[ C Br与 Triton X100在混合胶束中的作用机理。研究结果显示:混合胶束中, Triton
X-100分子的苯环定位于混合胶束的内核,聚氧乙烯链卷曲在异喹啉环周围。本文还应用规则溶液理论和浊
点法对比研究了十二烷基三甲基溴化铵(DTAB)- Triton X-100混合胶朿体系的相关性质。
关键词:表面活性离子液体;溴化N十二烷基异喹啉: Triton X-100:混合胶束;浊点
中图分类号:O648.1
Mixed Micelle of Surface Active lonic Liquid Lauryl Isoquinolinium
Bromide and Nonionic Surfactant Triton X-100 in Aqueous Solutions
ZHANG Xiao-hong XU Hong-yan GE Ling-ling GUO Rong
(School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu Province, P. R. China)
Abstract: The critical micelle concentrations of binary systems of surface active ionic liquid lauryl
isoquinolium bromide (C iquin Br)with nonionic surfactant Triton X-100 in aqueous solution were
investigated by isothermal titration calorimetry. The location of C iquin Br and Triton X-100 in the mixed
mice lie was studied using H nuc ear magnetic resonance(NMR)and two-dimensional nuclear Overhauser
enhancement spectroscopy (2D NOESY). It was found that the polyoxyethylene chain of Triton X-100 forms
inom coils around the isoquinolinium ring. The interaction of molecules in the mixed micelle of [C iquin] Br-
Triton X-100 was also studied using regular solution theory and the cloud point measurement technique, with
comparison to the interaction of doceyl trimethyl ammonium bromide(DTAB- riton X-100
Key Words: Surface active ionic liquid Lauryi isoquinolinium bromide; Tritonx-100 Mixed micelle
Cloud point
引言
解表面活性剂分子结构对混合溶液性质的影响,
离子型表面活性剂与非离子型表面活性剂的将有助于人们遴选表面活剂,达到理想的应用效
混合胶束中,表面活性剂间的作用相互受分子结果。表面活性离子液体除具有环境友好的独特性
构特性的影响,例如,表面活性剂分子头基的尺质外还具有比传统表面活性剂更好的表面特性和
寸、电荷分布和烷基链的长度等。因此,深入理聚集特性。表面活性离子液体与非离子表面活性
mber1,2015.
Correspondingauthor.Email:guorong(@yzu.edu.cn,Tcl:--86-514-87975590
1010113, 21573191 ), Priority Academic Program Develo
of Jiangsu Higher Education Institutions and State Key Laboratory of Heavy Oil Processing, China
国家自然科学基金(201010113,21573191)及江苏高校优势学科建设工程和重质油国家重点实验室开放基金资助项目
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