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Int. J. Mol. Sci. 2012, 13(10), 13726-13736; doi:10.3390/ijms131013726
Article

Synthesis and Characterization of Mesoporous Silica Functionalized with Calix[4]arene Derivatives

1,2,* , 1
 and
1
1 Department of Chemistry, Faculty of Science, University Malaya, Kuala Lumpur 50603, Malaysia 2 Department of Chemistry, Faculty of Science, Taibah University, Almadina Almonwara 30001, Saudi Arabia
* Author to whom correspondence should be addressed.
Received: 20 July 2012 / Revised: 12 October 2012 / Accepted: 12 October 2012 / Published: 23 October 2012
(This article belongs to the Section Material Sciences and Nanotechnology)
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Abstract

This work reports a new method to covalently attach calix[4]arene derivatives onto MCM-41, using a diisocyanate as a linker. The modified mesoporous silicates were characterized by fourier transform infrared spectroscopy (FTIR), thermal analysis (TGA) and elemental analysis. The FTIR spectra and TGA analysis verified that the calix[4]arene derivates are covalently attached to the mesoporous silica. The preservation of the MCM-41 channel system was checked by X-ray diffraction and nitrogen adsorption analysis.
Keywords: MCM-41; calix[4]arene; p-Sulfonatocalix[4]arene; para-tert-butyl calix[4]arene MCM-41; calix[4]arene; p-Sulfonatocalix[4]arene; para-tert-butyl calix[4]arene
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Alahmadi, S.M.; Mohamad, S.; Maah, M.J. Synthesis and Characterization of Mesoporous Silica Functionalized with Calix[4]arene Derivatives. Int. J. Mol. Sci. 2012, 13, 13726-13736.

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