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Synthesis of Co(II), Ni(II) and Cu(II) Complexes from Schiff base Ligand and Reactivity Studies with Thermosetting Epoxy Resin

Lakshmi, B and Shivananda, KN and Prakash, Gouda Avaji and Rama, Krishna Reddy K and Mahendra, KN (2011) Synthesis of Co(II), Ni(II) and Cu(II) Complexes from Schiff base Ligand and Reactivity Studies with Thermosetting Epoxy Resin. In: Bulletin of the Korean Chemical Society, 32 (5). pp. 1613-1619.

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Abstract

A hybrid thermosetting maleimido epoxy compound 4-(N-maleimidophenyl) glycidylether (N-MPGE) containing Co(II), Ni(II) and Cu(II) ions was prepared by curing N-MPGE and tetradentate Schiff base Co(II), Ni(II) and Cu(II) complexes. The curing polymerization reaction of N-MPGE with metal complexes as curing agents was studied. The cured samples were studied for thermal stability, chemical (acid/alkali/solvent) and water absorption resistance and homogeneity of the cured systems. The tetradentate Schiff base, 3-(Z)-2-piperazin-1-yl-ethylimino]-1,3-dihydro indol-2-one was synthesized by the condensation of Isatin (Indole-2, 3-dione) with 1-(2-aminoethyl)piperazine (AEP). Its complexes with Co(II), Ni(II) and Cu(II) have been synthesized and characterized by microanalysis, conductivity, Uv-Visible, FT-IR, TGA and magnetic susceptibility measurements. The spectral data revealed that the ligand acts as a neutral tetradentate Schiff base and coordinating through the azomethine nitrogen, two piperazine nitrogen atoms and carbonyl oxygen.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Korean Chemical Society.
Keywords: Isatin;Schiff base;Epoxy resin;Curing;Epichlorohydrin
Department/Centre: Division of Chemical Sciences > Organic Chemistry
Date Deposited: 22 Jun 2011 09:46
Last Modified: 22 Jun 2011 09:46
URI: http://eprints.iisc.ernet.in/id/eprint/38437

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