波谱学杂志2018,Vol.35Issue(1):81-89,9.DOI:10.11938/cjmr20172587
两个非离子表面活性剂复配体系的NMR研究
An NMR Study on Two Mixed Micelles Formed by Nonionic Surfactants
摘要
Abstract
NMR techniques were used to study the relative arrangement and interaction sites in mixed micelles formed in NP-10/Tween40 and NP-10/C10E6 aqueous solutions.The results of two-dimensional NOESY experiments and relaxation time measurements showed that the interaction site of these two pairs of mixed surfactants were similar,but the intermolecular interaction between NP-10 and Tween40 was stronger than that between NP-10 and C10E6.T2 measurements demonstrated that inter-heteromolecular interactions decreased when the molar concentrations of Tween40 and C10E6 were larger than 2 and 4 folds of that of NP-10,respectively.Under such circumstances,the inter-homomolecular interactions began to play a key role,indicative of the ideal mixture molar ratio and the change of synergistic effect in the complex systems.T2/T1 ratio measurements indicated that molecular chain movement in the NP-10/Tween40 mixture was more limited than that in the NP-10/C10E6 mixture.The above conclusions were verified by spatial distance measurements.关键词
核磁共振(NMR)/Tween40/C10E6/NP-10/混合胶束/相互作用/动态变化Key words
NMR/Tween40/C10E6/NP-10/mixed micelles/interaction/dynamic change分类
数理科学引用本文复制引用
赵瑞格,张卫红,马二倩,于海涛,杨秋青..两个非离子表面活性剂复配体系的NMR研究[J].波谱学杂志,2018,35(1):81-89,9.基金项目
河北省高等学校科学技术资助项目(ZD2015030) (ZD2015030)
河北省自然科学基金资助项目(B2016205249). (B2016205249)