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Synthesis and characterization of poly(ethylene aspartate)‐metal complexes
Author(s) -
Bajpai U. D. N.,
Rai Sandeep,
Bajpai Anjali
Publication year - 1993
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.4990320302
Subject(s) - thermogravimetric analysis , polyester , polymer chemistry , ethylene glycol , metal , ethylene , thermal stability , metal ions in aqueous solution , ligand (biochemistry) , nuclear chemistry , chemistry , elemental analysis , condensation polymer , inorganic chemistry , materials science , organic chemistry , polymer , catalysis , biochemistry , receptor
Poly(ethylene aspartate) [PEA] was synthesized by the melt condensation of D,L‐aspartic acid and ethylene glycol. PEA containing pendent amino and carbonyl groups in its repeating chain was used as the polymeric ligand for complexation with transition metal ions, viz. Co(II), Ni(II), Cu(II), Mn(II), Zn(II), Cd(II), Ca(II), Mg(II), Pb(II) and Hg(II). Complexation was found to be most effective in DMSO. The resulting polyester‐metal complexes were solid coloured materials which have been characterized by IR spectroscopy, elemental analysis and magnetic susceptibility measurements. The thermal stability of the polyester‐metal complexes was investigated by thermogravimetric analysis (TGA). On the basis of the physico‐chemical studies, an oxygen and nitrogen coordinated structure for the polyester‐metal complexes is proposed.