Polymerization and characterization of para-nitrophenol in sodium acetate medium on pb electrode
Publish place: 20th Iranian Chemical Congress
Publish Year: 1397
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
IRANCC20_317
تاریخ نمایه سازی: 28 اردیبهشت 1398
Abstract:
In this work a new polymer was prepared via electropolymerization of 4-nitrophenol on lead cathode in aqueous solution acetate medium (sodium acetate). electropolymerization of para-nitrophenol carried out in a separated electrochemical cell on Pb cathode under control potential of the cathod (-1 volt). The electrochemicalreduction of nitro compounds is best understood in terms of radical anions of the – NO2 group.Under conditions of low proton availability (weak alkaline media or aprotic solvent), the radical anions are quite stable and the reduction process splits into 1- electron and 3-electron steps [1]. After four hours, the electro-product was separated and washed with DDW to eliminate sodium acetate, unreacted 4-NP and the soluble electrode product. The electrode-product is a dark-brown powder, insoluble in water,but soluble in some organic solvents like methanol. The electrode-product was characterized by DSC, FT-IR, H-NMR, CV and suitable mechanism was proposed.
Authors
Zeinab Rajab Dizavandi
Department of applied chemistry, Kusar University of Bojnord, Iran
Alireza Aliakbar
Department of chemistry, Faculty of Science, University of Guilan, Rasht, Iran
Mehdi Sheykhan
Department of chemistry, Faculty of Science, University of Guilan, Rasht, Iran