Synthesis, Characterization, and Evaluation of Divinylbenzene-Coated Spherical Nonporous Silica

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• 作者：Gerd Fischer ; Urban Skogsberg ; Stefan Bachmann ; Hakan Yü ; ksel ; Stefan Steinbrecher ; Erich Plies ; and Klaus Albert
• 刊名：Chemistry of Materials
• 出版年：2003
• 出版时间：November 18, 2003
• 年：2003
• 卷：15
• 期：23
• 页码：4394 - 4400
• 全文大小：389K
• 年卷期：v.15,no.23(November 18, 2003)
• ISSN：1520-5002

文摘

Monodisperse nonporous silica particles were coated with different amounts of a divinylbenzene-based polymer resulting in a new class of reversed-phase high-performance liquidchromatographic material. An optimization of the polymer layer, with respect to thethickness, was performed to obtain optimal surface properties of the chromatographic sorbent.The materials were characterized using solid-state ¹³C CP/MAS NMR spectroscopy,thermogravimetry analysis, BET surface area measurements, scanning electron microscopy,and transmission electron microscopy. The application of the new materials in reversed-phase HPLC revealed extremely short separation times while maintaining a high chromatographic resolution.