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对十六烷基三甲基铵离子(HDTMA+)柱撑蒙脱石层间域内有机离子团的排布模式及其随柱撑液浓度升高而发生演化的过程进行了X射线衍射研究.结果表明,不同柱撑液浓度下,HDTMA+可以在蒙脱石的层间域内形成单层平卧相、双层平卧相、倾斜单层相、假三层相和倾斜双层相等多种空间排布模式;HDTMA+的排布方式既可以以一种相态出现,又可以数种相态并存.HDTMA+的空间排列方式随着柱撑液浓度的增大,其演化模式为:单层平卧→双层平卧→倾斜单层→假三层→倾斜双层.同时,有机离子团的堆垛密度也随着增大.
X-ray diffraction was used to study the arrangement of organic ion clusters in the intercalation domain of cetyltrimethylammonium ion (HDTMA +) and its evolution with increasing concentration of pillared liquid.Results The results show that HDTMA + can form a single horizontal pavement in the intergranular layer of montmorillonite at different concentrations of pillared solution. The double horizontal facies, inclined monolayer, pseudo-three-phase and inclined double-layer are equal to many kinds of spatial rows The mode of arrangement of HDTMA + can exist in one phase as well as several phases.The spatial arrangement of HDTMA + increases with the concentration of pillared fluid and its evolution mode is: supine → Bilayer supine → Tilt single layer → Fake three layers → Tilt double layer.At the same time, the stacking density of organic ion clusters also increases.