Cathodic electropolymerization of 4-nitroaniline and preparation a new weak anex for application in analysis of some compounds

In this work ,4-nitro aniline was electropolymerized on Pb cathode under constant current condition (10mA).The electrochemical cells were separated by a thin layer of agar and catholyte was sodium acetate.After 10 hours a black product was precipitated. It was collected and after purification by soxhlet it was characterized by CV ,FT-IR and DSC .A suitable mechanism for electrode reaction was proposed.The electrode-product was soluble in DMSO. The obtained result showed that the electrode product contains NH2 and polymerization was carried out through NO2 group. The prepared polymer was coated on a suitable solid support and was used for separation of some compounds like soluble flavenoides from various samples before measuring by HPLC .The synthesized polymer showed high tendency towards phenolic compounds. Consequently a high preconcentration factor and high percentage of extraction were achieved [1-3].