Synthesis, characterization and thermal degradation of oligo-2-[(4- iodophenylimino)methyl|phenol and ol1gomer-metal complexes
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Tarih
2009
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Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The conditions for oxidative condensation of 2-[(4-iodophenylimino)methyl] pheno| (1P1MP) were studied with air and NaOCI as oxidants in an aqueous alkaline medium between 50 and 90°C. Size exclusion chromatography (SEC) showed that the number-average molecular weight (Mn), weight-average molecular weight (Mw) and polydispersity index (PDI) values, respectively, were 1250, 1300 g mol-1 and 1.040 for oxidation with NaOCI and 2200, 2500 g mol-1 and 1.136 for oxidation by air. With the optimum reaction conditions, the yield of OIPIMP was found to be 67 % with NaOCI, and 29 % with air, as oxidant. The OIPIMP was characterized by 1H-NMR, 13C-NMR, FT-1R, UV-Vis and elemental analysis. Metal complexes of the oligomerwere shown to be more thermally stable than OIPIMP itself. © 2009 Chemical Society of Ethiopia.
Açıklama
Anahtar Kelimeler
Oligo-2-[(4-iodophenylimino)methyl]phenol; Oligomer-metal complexes; Oxidative polycondensation; Thermal analysis
Kaynak
Bulletin of the Chemical Society of Ethiopia
WoS Q Değeri
Scopus Q Değeri
Q3
Cilt
23
Sayı
1
