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中文摘要：
以1,2-二（三甲氧基硅基）-乙烷为硅源、聚氧乙烯-聚氧丙烯-聚氧乙烯三嵌段共聚物（EO20PO70EO20,P123）为模板剂、十六烷基三甲基溴化铵（CTAB）为共模板剂、乙醇为共溶剂,在酸性条件下合成了一种乙烷桥键有序介孔材料（PME）。研究表明,该PME具有高的比表面积（1 152m^2/g）、高度有序的孔结构（二维六方相）、窄的孔径分布及表面光滑的球形形貌。将该PME不经化学改性直接用作反相高效液相色谱固定相,能够有效分离5种多环芳香族化合物（苯、萘、联苯、菲和芘）。
英文摘要：
The periodic mesoporous ethanesilica （PME） was synthesized in acidic medium by the condensation of 1,2- bis （trimethoxysily） ethane （BTME） using triblock copolymer EO20 POT0 EO20 （ P123 ） as template, cetyltrimethylammonium bromide （CTAB） as co-surfactant and ethanol as co-solvent. The results of nitrogen-sorption measurement, powder X-ray diffraction （XRD）, and scanning electron microscopy （SEM） show that the PME has high surface area （1 152 m^2/g）, narrow pore-size distribution, ordered pore structure, and spherical morphology. The spherical PME without further chemical modification was used as the stationary phase in reversed-phase high performance liquid chromatography. Highly efficient and rapid separation of the mixture of polycyclic aromatic hydrocarbons （ benzene, naphthalene, biphenyl, phenanthrene and pyrene） was obtained on the column packed with the PME.
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