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首页> 外文期刊>Journal of New Developments in Chemistry >Preparation and Application for Separation of Small Molecules of a New Poly(OVS-co-EDMA) Hybrid Monolithic Column
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Preparation and Application for Separation of Small Molecules of a New Poly(OVS-co-EDMA) Hybrid Monolithic Column

机译：新型聚（OVS-co-EDMA）混合整体柱小分子的制备及分离应用

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A hybrid monolithic column was prepared using octavinyloctasilasesquioxane (OVS) as a monomer, benzoyl peroxide/dimethylacetamide (BPO/DMA) as initiator, ethylene glycol dimethacrylate (EDMA) as cross-linker, 1-dodecanol as porogenic agent and dimethylbenzene as cosolvent. A tidy skeleton, much bigger specific surface area (22.4 m2/g) and lower swelling property of the monolithic column with OVS added than the one without OVS added were determined with Scanning Electron Microscopy (SEM), Nitrogen adsorption/desorption measurements (BET) and swelling test with elute of different concentration of acetonitrile in water. Fourier-transform infrared spectra (FTIR) was taken to characterize the composition of groups. Moreover, a better separation performance for benzene series compounds under reversed phase liquid chromatography (RPLC) mode was obtained using the monolithic columns with OVS added than those without.
机译：制备杂化整体式色谱柱，使用辛基八烷基苯甲酰硅倍半硅氧烷（OVS）作为单体，过氧化苯甲酰/二甲基乙酰胺（BPO / DMA）作为引发剂，乙二醇二甲基丙烯酸酯（EDMA）作为交联剂，1-十二烷醇作为致孔剂和二甲基苯作为助溶剂。通过扫描电子显微镜（SEM），氮气吸附/解吸测量（BET）确定了一个整齐的骨架，比表面积（22.4 m2 / g）大得多，添加了OVS的整体式色谱柱比未添加OVS的整体式色谱柱溶胀试验，用不同浓度的乙腈洗脱。傅立叶变换红外光谱（FTIR）用于表征组的组成。此外，使用添加了OVS的整体式色谱柱，与不使用OVS的整体式色谱柱相比，在反相液相色谱（RPLC）模式下，苯系列化合物的分离性能更好。

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