Add time:08/31/2019 Source:sciencedirect.com
Amine-functionalized, organic/inorganic hybrid mesostructured organosilica (BAFMO) materials have been synthesized and characterized from two bridged silsesquioxane precursors, 1,2-bis(triethoxysilyl)ethane (BTESE) and bis[(3-trimethoxysilyl)propyl]amine (BTMSPA). Mole ratios of BTESE ranged from 0.05, 0.10, 0.125, to 0.175. The synthetic pathway involves employing cetyltrimethylammonium bromide as a template under basic conditions at room temperature. X-ray diffraction (XRD) and transmission electron microscopy (TEM) studies revealed that the resultant BAFMO materials possess mesocopically ordered, hexagonal symmetries and well-defined morphologies. However, the order was decreased as the amount of BTMSPA increased, in terms of the d100 spacings and the unit cell parameters on XRD as well as the TEM images. N2 gas sorption experiments showed a gradual decrease in both the surface area, from 1075 to 688 m2/g, and the pore volume, from 2.08 to 0.55 cm3/g, on increasing the amount of BTMSPA. The organic functionalization was successfully determined by Fourier-transform infrared and 13C CP MAS NMR spectroscopy. X-ray photoelectron spectroscopy and elemental analysis results also confirmed the presence of Si–C bond as well as amine functionalities in the solvent-extracted mesoporous organosilica materials.
We also recommend Trading Suppliers and Manufacturers of 1,2-BIS(TRIMETHOXYSILYL)ETHANE (cas 18406-41-2). Pls Click Website Link as below: cas 18406-41-2 suppliers
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View