All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.

Abstract

Preparation and metal uptake capacity of pentaaza-macrocyclic polysiloxane immobilized ligand system

Author(s): Nizam M.El-Ashgar, Monzir S.Abdel-Latif

Insoluble porous solid macrocyclic 1,4,7,10,13-pentaazapentadecane-3,14- dione-1-propyl-N-propyl polysiloxane ligand systemof the general formula P-(CH2)3-NH-(CH2)3-C8H22O2N3, (where P represents [Si-O]n siloxane network) has been prepared by the reaction of macro-silane agent with tetraethyl orthosilicate. Themacro-silane agentwas prepared by the reaction of iminobis (N-2-aminoethylacetamide) ligandwith 3-iodopropyltrimethoxysilane in 1:3 molar ratio respectively. The new prepared polysiloxane system exhibits high potential for the uptake of metal ions (Fe3+, Co2+, Ni2+, Cu2+, Zn2+,Ag+, Cd2+, Hg2+ and Pb2+). Chemisorption of the metal ions by the ligand system at the optimum conditions was found in the order: Ag +Pb2+  Hg2+  Cu2+  Ni2+  Fe3+  Co2+> Cd2+>Zn2+.


Share this       

Table of Contents

Recommended Conferences

Flyer
izmir escort izmir escort bursa escort antalya escort izmir escort porno porno izle türk porno eskişehir escort bartın escort burdur escort havalandırma izmir escort bursa escort porno indir izle escort izmir