在线阅读 --自然科学版 2014年1期《核磁共振对表面活性剂混合胶束的探究》
核磁共振对表面活性剂混合胶束的探究--[在线阅读]
安志敏1, 张占辉1, 杨秋青2
1. 河北师范大学 化学与材料科学学院, 河北 石家庄 050024;
2. 河北师范大学 分析测试中心, 河北 石家庄 050024
起止页码: 102--108页
DOI: 10.11826/j.issn.1000-5854.2014.01.021
摘要
综述了近几年核磁共振技术(NMR)对表面活性剂混合胶束的形成和性质的研究.NMR参数提供了如下信息:化学位移的变化显示胶束的形状;扩散系数的大小判断胶束的尺寸;弛豫测量(T2/T1)提供胶束的动态信息,其中T1提供胶束粘度信息,T2表征混合胶束是否形成以及相互作用的产生;二维NOESY,ROESY,HOESY实验技术显示混合胶束间的相互作用及其混合胶束间的距离和立体结构.

NMR Method for the Study of Mixed Surfactant Micelle
AN Zhimin1, ZHANG Zhanhui1, YANG Qiuqing2
1. College of Chemistry and Material Sciences, Hebei Normal University, Hebei Shijiazhuang 050024, China;
2. Analysis and Testing Center, Hebei Normal University, Hebei Shijiazhuang 050024, China
Abstract:
NMR technology is effective to determine the formation of micelles and study their properties in mixed systems of surfactants.The chemical shift changes show the micellar shape, and the self diffusion coefficients indicate the micellar size.The relaxation time(T2/T1)gives dynamic information, relaxation time T1 gives information of the micellar viscosity;relaxation time T2 can identify the micellar's formation.Two dimentional NOESY, ROESY, HONESY show the interactions and distances between the surfactants inside the micelles.

收稿日期: 2013-1-21
基金项目: 国家自然科学基金(21272053);河北省自然科学基金(B2011205031);河北师范大学自然科学基金(L2011Y09)

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