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Reference type: Journal
Authors: Iordache TV, Sarbu A, Donescu D, Nicolae CA, Jerca FA, Dima SO
Article Title: Selecting the nature of imprinted molecular organosilica sieves with gallic acid via thermal analyses.
Publication date: 2014
Journal: Journal of Thermal Analysis and Calorimetry
Volume: 118
Issue: (2)
Page numbers: 1039-1048.
DOI: 10.1007/s10973-014-3851-y

Abstract: The stability of the organosilica-gallic acid (GA) complex, and thus the strength of initial interactions which influences directly the sorption parameters of imprinted materials, is mostly given by the nature of co-monomers. Therefore, combining tetraethoxysilane, tetrametoxysilane, vinyl triethoxysilane and vinyl benzyl triethoxysilane as functional monomers, six formulations were obtained in order to optimise the nature of imprinted sieves. Vinyl benzyl trimethylammonium chloride and tertamethyl ammonium hydroxide directed the mesophase formation. Morphology and thermal properties of imprinted organosilica sieves were evaluated and compared to those of blank polymers synthesised in the same conditions as the imprinted ones but without GA. Thermal analysis results corroborated with the morphology of imprinted sieves were confirmed by specific GA sorption tests
Template and target information: gallic acid, GA
Author keywords: molecularly imprinting, sol-gel, Organosilica, Thermal degradation, Gallic acid, specificity


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