Preparation, structural characterisation, thermal and electrical studies of cobalt(II) chloride and zinc(II) chloride compounds of poly(acrylamide)

The reaction of poly(acrylamide) with cobalt(II) chloride and zinc(II) chloride produced compounds of stoichiometry [Co(C 3H 5NO) 10Cl 26H 2O] n and [Zn(C 3H 5NO) 14Cl 2H 2O] n . In these compounds the metal ions are in tetrahedral environments. Thermal decomposition studies show that these compound...

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Bibliographic Details
Published inThermochimica acta Vol. 230; pp. 129 - 135
Main Authors Allan, J.R., Beaumont, P.C., Milburn, G.H.W., Wood, I.J.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 15.12.1993
Elsevier Science
Subjects
Chemical thermodynamics
Chemistry
Elements, mineral and organic compounds
Exact sciences and technology
General and physical chemistry
Thermodynamic properties
Characterization
Electrical conductivity
Electrical properties
Thermogravimetric analysis
Cobalt Chlorides
Transition metal Compounds
Preparation
Zinc Chlorides
Acrylamide polymer
Experimental study
Phase transitions
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Summary:The reaction of poly(acrylamide) with cobalt(II) chloride and zinc(II) chloride produced compounds of stoichiometry [Co(C 3H 5NO) 10Cl 26H 2O] n and [Zn(C 3H 5NO) 14Cl 2H 2O] n . In these compounds the metal ions are in tetrahedral environments. Thermal decomposition studies show that these compounds first lose water followed by the organic ligand and halogen to give the metal oxides. Poly(acrylamide) was found to have a glass transition temperature of 168°C. The room temperature electrical conductivities for poly(acrylamide) and its cobalt and zinc polymers lie in the range 9.97 × 10 −8 to 7.71 × 10 −7 and show ohmic conductivity.
ISSN:0040-6031
1872-762X
DOI:10.1016/0040-6031(93)80354-D