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中文摘要：
以苯乙烯（St）为单体，二乙烯基苯（DVB）为交联剂，利用表面引发聚合技术制备了聚苯乙烯－二乙烯基苯包覆硅胶固定相。用傅立叶变换红外光谱（FTIR），扫描电子显微镜（SEM），元素分析以及比表面及孔径分析等手段对其性质进行了表征，并以芳环类以及磺胺类化合物为探针，在甲醇／水体系中对其色谱性能进行考察，结果表明该固定相具有较好的反相色谱性能。
英文摘要：
A poly （styrene-co-divinylbenzene） coated silica （Silica @ p （St-co-DVB）） was synthesized through the radical ＂grafting from＂ polymerization on azo initiator-immoblized silica. The immobilization of azo initiator onto the silica surface was achieved by the reaction of surface amino groups with 4,4′- azobis（4-cyanovaleric acid chloride）. The Silica@p（St-co-DVB） was prepared by stiring suspension of the azo initiator-immoblized silica in anhydrous dioxane containing styrene （St） and divinylbenzene （DVB）. The polymer was characterized by FTIR, SEM, elemental analysis, and surface area and pore analysis. Chromatographic performance of Silica@ p （St-co-DVB） was evaluated by using polycyclic aromatic hydrocarbons and sulfonamides as model compounds.
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