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Article Dans Une Revue Silicon Année : 2017

Template Synthesis of Iminodiacetic Acid Polysiloxane Immobilized Ligand Systems and their Metal Uptake Capacity

Résumé

Porous solid polysiloxane ligand systems bearing an iminodiacetic acid chelating ligand of the general formula P-IDA (where P-represents [Si-O] n polysiloxane network and IDA represent an organofunctional group) were achieved in a two-step reaction. The first step includes a template synthesis of 3-iodopropylpolysiloxane (P-I) or 3-aminopropyl-polysiloxane (P-MA) by hydrolytic polycondensation of TEOS and the corresponding silane agent in the presence of CTAB as a surfactant. The second step includes a modification of 3-iodopropylpolysiloxane with diethyliminodiac-etate or 3-aminopropylpolysiloxane with ethylchloroacetate to produce IDA-functionalized polysiloxane ligand systems P-IDA-I & P-IDA-II respectively. It was found that the modified IDA-functionalized polysiloxane ligand systems exhibited higher capacities for uptake of the metal ions (Ni 2+ , Cu 2+ and Pb 2+) than those prepared without surfactants.
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Dates et versions

hal-02162451 , version 1 (21-06-2019)

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Nizam M. El-Ashgar, Mohammad K. Silmi, Issa M. El-Nahhal, Mohamed M. Chehimi, Florence Babonneau. Template Synthesis of Iminodiacetic Acid Polysiloxane Immobilized Ligand Systems and their Metal Uptake Capacity. Silicon, 2017, 9 (4), pp.563-575. ⟨10.1007/s12633-015-9303-x⟩. ⟨hal-02162451⟩
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