Preparation of some chitosan heavy metal complexes and study of its properties |
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| Authors: | M H M Hussein M F El-Hady W M Sayed H Hefni |
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| Institution: | 1.Polymer lab, Petrochemicals Department,Egyptian Petroleum Research Institute (EPRI),Cairo,Egypt;2.Chemistry department, Faculty of Science,Al-Azhar University,Cairo,Egypt |
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| Abstract: | The chitosan was prepared and mixed with some metal salts (FeCl3, Co(OAc)2 and NiCl2) by different concentrations to form chitosan-metal complexes. The metal ions which strongly complexed to the amino groups
of chitosan like Fe showed a smooth surface product, amorphous phase, thermally more stable and high electrical conductivity
than other complexes, while the Co ions which the weakly complexed with chitosan showed a rough surface product, crystalline
phase, thermally less stable and low electrical conductivity. The chitosan-metal complexes have a higher electrical conductivity
than chitosan pure at room temperature. |
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