DC electrical conductivity of poly[4-amino-2,6-pyrimidinodithiocarbamate] and its metal complexes

Poly[4-amino-2,6-pyrimidinodithiocarbamate] (PPT) is prepared from the reaction of 2-mercapto-4,6-diaminopyrimidine with carbon disulfide followed by condensation through the removal of H 2S gas. The polymer is then used as a ligand to form polymer–metal complexes with the 3d-elements Mn(II), Fe(II)...

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Bibliographic Details
Published in:Polymer (Guilford) 1999-05, Vol.40 (11), p.2879-2887
Main Authors: El-Shekeil, Ali, Al-Maydama, Hussein, Al-Karbooly, Ashour, Khalid, Maarib A
Format: Article
Language:English
Subjects:
Applied sciences
DC electrical conductivity
Exact sciences and technology
Inorganic and organomineral polymers
Physicochemistry of polymers
Polydithiocarbamate
Polydithiocarbamate complexes
Properties and characterization
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Summary:Poly[4-amino-2,6-pyrimidinodithiocarbamate] (PPT) is prepared from the reaction of 2-mercapto-4,6-diaminopyrimidine with carbon disulfide followed by condensation through the removal of H 2S gas. The polymer is then used as a ligand to form polymer–metal complexes with the 3d-elements Mn(II), Fe(II), Fe(III), Co(II), Ni(II), Cu(II), and Zn(II). The DC electrical conductivity as a function of temperature is measured in the temperature range 300–500 K. The mechanism of conduction, the role of adsorbed water and complexation are explained on an energy diagram. This is carried out in accordance with the u.v.–VIS spectrum, TGA and DTA measurements. For comparison with 5d-elements, measurements are carried out also on Hg(II)–polymer complex.
ISSN:0032-3861
1873-2291
DOI:10.1016/S0032-3861(98)00477-7