Metal ion complexation of hydrophilic polymeric amino ligands derived from tetraethyleneglycol diacrylate (TTEGDA)-crosslinked polyacrylamides

Mathew, Beena ; Rajasekharan Pillai, V. N. (1996) Metal ion complexation of hydrophilic polymeric amino ligands derived from tetraethyleneglycol diacrylate (TTEGDA)-crosslinked polyacrylamides Proceedings of the Indian Academy of Sciences - Chemical Sciences, 108 (1). pp. 1-12. ISSN 0253-4134

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Official URL: http://www.ias.ac.in/j_archive/chemsci/108/1/1-12/...

Related URL: http://dx.doi.org/10.1007/BF02872507

Abstract

Complexation behaviour of amino ligands supported on polyacrylamides with 2–20 mol% of tetraethyleneglycol diacrylate crosslinks was investigated towards Co(II), Ni(II), Cu(II), Zn(II) and Hg(II) ions. The metal ion intake was dependent on the extent of crosslinking and followed the order: Hg(II) > Cu(II) > Zn(II) > Ni(II) > Co(II). The aminopolyacrylamides and their metal complexes were characterised by IR and EPR techniques. The absorptions of the ligands were shifted by complexation with metal ions and the EPR spectrum suggested distorted tetragonal geometry for the Cu(II) complex. The thermogravimetric analysis of the metal complexes revealed a pattern of variation of thermal stability on incorporation of metal ions. The kinetics and adsorption parameters of complexation, swelling characteristics, recyclability and specificity of metal-desorbed systems are also described.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Polymer-metal Complexes; Crosslinked Polyacrylamides; Amine-metal Complexes; Specificity
ID Code:38621
Deposited On:23 May 2011 06:35
Last Modified:17 May 2016 21:24

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