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以嵌段共聚物P123(EO_(20)PO_(70)EO_(20))作为模板剂,在无酸介质中利用无机盐ZrOCl_2-NaCl的协同作用合成了二维六方结构的乙烷桥联PMOs(periodic mesoporous organosilicas)杂化介孔材料,并借助高分辨透射电镜(HRTEM),小角X-射线散射(SAXS),等温N_2-吸附-脱附以及固体~(13)C CP MAS NMR和~(29)Si CP MAS NMR核磁共振技术等手段对其物性特征进行了表征。结果表明:目标产物具有高度有序的六方孔道排列和有机-无机杂化网络骨架,体现了无机盐组合在目标产物组装过程中的协同作用。
Two-dimensional hexagonal ethane-bridged PMOs were synthesized by the synergistic effect of the inorganic salt ZrOCl_2-NaCl in acid-free medium using the block copolymer P123 (EO_ (20) PO_ (70) EO_ (20) (13) C CP MAS NMR and ~ (13) CSP MAS NMR with high resolution transmission electron microscopy (HRTEM), small angle X-ray scattering (SAXS), isothermal N 2 -sorption- 29) Si CP MAS NMR nuclear magnetic resonance and other means of its physical properties were characterized. The results show that the target product has highly ordered hexagonal pore arrangement and organic-inorganic hybrid network framework, which reflects the synergistic effect of the inorganic salt combination in the assembly of the target product.