title: Synthesis and characterization of mesoporous silica functionalized with calix[4]arene derivatives.
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.
authors.affiliation: Department of Chemistry, Faculty of Science, University Malaya, Kuala Lumpur 50603, Malaysia. so2002na@yahoo.com.
authors.forename: Sana M
authors.initials: SM
authors.lastname: Alahmadi
authors.forename: Sharifah
authors.initials: S
authors.lastname: Mohamad
authors.forename: Mohd Jamil
authors.initials: MJ
authors.lastname: Maah
mesh_terms: D047250:Calixarenes / Q000138:chemical synthesis* / Q000737:chemistry; D010636:Phenols / Q000138:chemical synthesis* / Q000737:chemistry; D016062:Porosity; D012822:Silicon Dioxide / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013818:Thermogravimetry; D014961:X-Ray Diffraction
chemical_list: C509968:MCM-41; D010636:Phenols; C121325:calix(4)arene; D047250:Calixarenes; D012822:Silicon Dioxide