Polymerization and characterization of para-nitrophenol in sodium acetate medium on pb electrode

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