A novel green template for the synthesis of mesoporous silica.
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; (1)H, (13)C, and (29)Si 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.
Xu
Yeping
Y
Institut für Chemie und Biochemie, Freie Universität Berlin, Takustrasse 3, Berlin, Germany.
Xu
Shangjie
S
Emmler
Thomas
T
Roelofs
Frank
F
Boettcher
Christoph
C
Haag
Rainer
R
Buntkowsky
Gerd
G
D009682:Magnetic Resonance Spectroscopy; D046529:Microscopy, Electron, Transmission; D012822:Silicon Dioxide / Q000138:chemical synthesis*
D012822:Silicon Dioxide