Synthesis and characterization of a pyridine-containing Schiff base oligomer |
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| Authors: | H Ö Demir I Kaya M Saçak |
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| Institution: | 1. Department of Chemistry, Faculty of Science, Ankara University, Ankara, Turkey
2. Department of Chemistry, Faculty of Science and Art, ?anakkale Onsekiz Mart University, 17020, ?anakkale, Turkey
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| Abstract: | The oligomer of 4-(4-pyridylmethylideneimino)phenol was formed during oxidative polycondensation in aqueous alkaline medium
using oxygen as the oxidant. Optimum conditions of the oxidative polycondensation and the main parameters of the process were
found. The maximum yield of the oligomer was 52.4%. The product was characterized by elemental analysis, FT-IR spectroscopy,
UV-Vis spectroscopy, and 1H NMR spectroscopy. The molecular weight distribution was determined by size exclusion chromatography. Thermogravimetric and
differential thermal analyses were carried out for 4-(4-pyridylmethylideneimino)phenol and its oligomer.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 1785–1788, October, 2006. |
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| Keywords: | oxygen oxidative polycondensation 4-(4-pyridylmethylideneimino)phenol Schiff bases oligomers |
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