Abstract
The reaction conditions and component ratios were established for the attachment of 4-(2-pyridylazo)resorcinol (PAR), 1-(2-pyridylazo)-2-naphthol (PAN) and 8-hydroxyquinoline (8-HQ) to the silica surface by means of a single-stage Mannich reaction. The modified sorbents that were synthesized were characterized by an adsorption method, and DRIFT and UV spectroscopies. The concentrations of PAR, PAN and 8-HQ grafted to the silica surface that were attained were 2.8×10−5, 8.5×10−5 and 2.7×10−4 mol g−1, respectively.
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Tertykh, V.A., Yanishpolskii, V.V. & Panova, O.Y. Covalent Attachment of Some Phenol Derivatives to the Silica Surface by Use of Single-stage Aminomethylation. Journal of Thermal Analysis and Calorimetry 62, 545–549 (2000). https://doi.org/10.1023/A:1010187508531
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DOI: https://doi.org/10.1023/A:1010187508531