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- W2891985024 abstract "The oxidative polycondensation reaction conditions and optimum parameters of N-salicylidenephenylhydrazone (SPH) were determined using air, H 2 O 2 and NaOCl as oxidants at a temperature range between 50 °C and 95 °C in an aqueous alkaline medium. The molecular structures of the obtained monomer and oligomer were confirmed by FT-IR, UV-Vis, 1 H- NMR and elemental analyses. The characterization was fulfilled by TG-DTA, size exclusion chromatography (SEC) and solubility tests. The conversion of N-salicylidenephenylhydrazone into oligomer was performed using air, H 2 O 2 and NaOCl as oxidants in an aqueous alkaline medium. According to SEC analysis, the number-average molecular weight (M n ), weight-average molecular weight (M w ) and polydispersity index (PDI) values of oligo-N-salicylidenephenylhydrazone (OSPH) obtained using NaOCl oxidant were found to be 1436 g mol-1, 1631 g mol -1 and 1.14, respectively. The conversion yield of N-salicylidenephenylhydrazone into oligo-N-salicylidenephenylhydrazone was 100% at optimum reaction conditions such as [SPH] 0 = [KOH] 0 = [H 2 O 2 ] 0 =0.06, mol/L and at 90 °C for 10 h. Also, according to TG-DTA analysis, oligo-N-salicylidenephenylhydrazone was shown to be thermally stable and resistant to thermo-oxidative decomposition. The weight loss of OSPH was found to be 20, 50 and 92.56% at 275°, 597° and 1000 °C, respectively." @default.
- W2891985024 created "2018-09-27" @default.
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- W2891985024 date "2018-01-01" @default.
- W2891985024 modified "2023-10-11" @default.
- W2891985024 title "Synthesis, Characterization and Optimum Reaction Conditions of Oligo-N-Salicylidenephenylhydrazone via Oxidative Polymerization" @default.
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- W2891985024 doi "https://doi.org/10.18596/jotcsa.374150" @default.
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