ELECTROCHEMICAL POLYMERIZATION AND ANALYSIS OF SOME ANILINE DERIVATIVES

In this study, conductive homopolymers of o-chloroaniline, p-bromoanil ine and N-methylaniline were synthesized electrochemically in perchlor ic acidic solution and their properties were analyzed. Initially, the maximum oxidation potential values of these monomer solutions were det ermined by Cyclic Voltammetry (CV). Their conductive polymers were the n synthesized under a nitrogen atmosphere using a potentiostat. FTIR s pectra were taken in order to analyze the structural properties of the resulting polymers. Thermogravimetric analysis (TGA) was conducted an d surface micrographs were taken by a Scanning Electron Microscope (SE M). The conductivity levels of the polymers were determined by the Fou r Probe technique. Magnetic properties of the samples were analyzed an d the conduction mechanisms were examined. Based on the resulting cond uctivity data, it was concluded that poly(p-bromoaniline) was of polar on structure, whereas poly(o-chloroaniline) and poly(N-methylaniline) were of bipolaron structure. Thermogravimetric analysis results indica ted that poly(N-methylaniline) has the highest maximum decomposition t emperature, and conductivity measurements revealed that poly(o-chloroa niline) has the highest conductivity level.