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首页> 外文期刊>RSC Advances >Developing a new and versatile ordered mesoporous organosilica as a pH and temperature stable chromatographic packing material
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Developing a new and versatile ordered mesoporous organosilica as a pH and temperature stable chromatographic packing material

机译：开发一种新型，多功能的有序介孔有机硅作为pH和温度稳定的色谱填料

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摘要

Periodic Mesoporous Organosilicas (PMOs) have been successfully spray dried for the first time using a novel cyclic multifunctional organosilane molecule. By reducing the siloxane bridge formation both in the polymerisation and in the anchoring of the side groups an organic/ inorganic hybrid material was designed, depicting inherently improved chemical stability and much increased organic content. The spherical silica particles were applied as a hydrolytically stable stationary phase in reversed phase HPLC. They proved to be both highly retentive and stable in a pH range from 1.75 to 12 and up to 150 degrees C in 60 v% water. Both the backbone and the functionalities of the material exhibit this high stability.
机译：周期性的介孔有机硅（PMO）已成功使用新型的环状多功能有机硅烷分子成功进行了喷雾干燥。通过减少在聚合反应中和在侧基的固定中硅氧烷桥的形成，设计了一种有机/无机杂化材料，其固有地改善了化学稳定性并大大增加了有机含量。在反相HPLC中，将球形二氧化硅颗粒用作水解稳定的固定相。它们被证明具有高保持力，并且在1.75至12的pH范围内以及在60 v％的水中高达150摄氏度的温度下均稳定。材料的骨架和功能性都表现出这种高稳定性。

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