论文部分内容阅读
利用核磁共振化学位移变化,自旋-自旋弛豫和2D NOESY(two-dimensional nuclear Overhauser enhancementspectroscopy)研究了一系列新合成的双取代烷基苯磺酸盐的胶束化.结果表明,邻位取代的是正烷烃链,间位取代的是支烷烃链.而且,邻位取代的烷烃链越长,参与形成胶束疏水核表面层的亚甲基个数越多.因此,每个分子在饱和吸附的油水界面上的面积越大.间位取代的分支链在胶束疏水核中堆积得没有邻位取代的正烷烃链紧密.分支链越短,堆积得越不紧密.描述了胶束中分子的相对排列.
Micellization of a series of newly synthesized bis-substituted alkylbenzenesulfonates was investigated by using NMR chemical shifts, spin-spin relaxation and 2D NOESY (two-dimensional nuclear Overhauser enhancementspectroscopy) Substitution is n-paraffins and meta-substituted paraffins.Moreover, the longer ortho-substituted paraffins, the more methylene involved in the formation of the micelle hydrophobic core surface.Therefore, Adsorbed oil-water interface, the greater the area.M-substituted branches in micellar hydrophobic nucleus accumulation of no ortho-substituted n-alkane chains are close.The shorter the branch chain, the accumulation of the less dense.Described in the micelles The relative arrangement of molecules.