A novel green template for the synthesis of mesoporous silica

作者：Xu Yeping; Xu Shangjie; Emmler Thomas; Roelofs Frank; Boettcher Christoph; Haag Rainer; Buntkowsky Gerd^*

来源：Chemistry - A European Journal, 2008, 14(11): 3311-3315.

DOI：10.1002/chem.200701806

• green chemistry
• mesoporous silica
• polyglycerols
• solid-state NMR spectroscopy
• sustainable chemistry

Mesoporous pure silicas and functionalized silica with a narrow pore size distribution centered at 3.8 nm were prepared by a novel template, amphiphilic dendritic polyglycerol. The resulting silica materials were characterized by electron microscopy; nitrogen adsorption; H-1, C-13, and Si-29 solid-state cross-polarization magic-angle spinning NMR spectroscopy. It was shown that the template could be completely removed from the pure and functionalized silica in an environmentally friendly way by means of a simple water extraction procedure. Furthermore, it was shown that these materials could be easily functionalized, for example, by employing aminopropyl groups. Thus, a new environmentally friendly pathway to this fascinating class of silica material has been opened.

• 出版日期2008