波谱学杂志2017，Vol.34Issue(1)：16-24,9.DOI:10.11938/cjmr20170103
NP-10与单链、双链季铵盐三种复配体系相互作用规律的NMR研究
Interactions Between NP-10 and Single/Double Chain Quaternary Ammonium Salts Studied by NMR Spectroscopy
摘要
Abstract
NMR spectroscopy was used to study the behaviors of three binary surfactant micellar solutions, NP-10/DTAC, NP-10/C12-C4-C12 and NP-10/C12-C8-C12 respectively. Relative arrangement and the sites of interactions between the surfactant molecule pairs in the mixed micelles, as well as the differences in inter-/intra- molecular interactions were investigated. 2D NOESY experiments revealed that the number of sites of interaction varied across the different binary mixtures, and the degree of interactions increased in the following order: NP-10/C12-C8-C12>NP-10/C12-C4-C12>NP-10/DTAC. Self-diffusion coefficient experiments showed that the influence of NP-10 on the hydro-dynamic radius of the mixed micelles was greater than that of quaternary ammonium salts. Spin-spin relaxation time experiments indicated that, for NP-10/DTAC and NP-10/C12-Cs-C12 (s =4 or 8) binary systems, intra-molecular interactions dominated and inter-molecular interactions began to decrease at molar ratios 1:3 and 1:2. These points corresponded to the optimal molar ratio for synergic effects. Spatial distance measurements supported this result, confirmed that the optimal molar ratio was 1:3 and 1:2.关键词
核磁共振(NMR)/单链、双链氯化物季铵盐/壬基酚聚氧乙烯醚(NP-10)/相互作用Key words
NMR/single chain double chain quaternary ammonium/NP-10/interaction分类
数理科学引用本文复制引用
马二倩,李永肖,赵瑞格,张占辉,杨秋青..NP-10与单链、双链季铵盐三种复配体系相互作用规律的NMR研究[J].波谱学杂志,2017,34(1):16-24,9.基金项目
国家自然科学基金资助项目(21272053),河北师范大学自然科学基金资助项目(L2011Y09). （21272053）
