Abstract
Polyaniline–cobalt coordination polymer (abbreviated as PANI-Co) was synthesized using peroxydisulphate as an oxidant in the solution containing 0.1 mol dm −3 aniline, 0.5 mol dm −3 HCl and an adequate content of CoCl 2·6H 2O at room temperature. The conductivity of PANI-Co was 0.5 S cm −1. The cyclic voltammogram results indicated that the PANI-Co film was of electrochemical activity, and the EPR spectrum showed that there were unpaired electrons in the PANI-Co. The relationship between magnetization ( M) and the applied magnetic field ( H) suggests that PANI-Co was soft ferromagnetic material at room temperature. Thus, the PANI-Co was both conductive and ferromagnetic. Moreover, UV–vis and FTIR spectra showed that there existed a strong interaction between Co 2+ and PANI chains.
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