With the itaconic acid as dopant and ammonium persulphate as initiator

polyaniline (PANI) was synthesized under different temperatures by chemical oxidation polymerization. The productivity and conductivity of PANI were calculated and various performance indexes of PANI were measured. The electrical conductivity

chemical structure

UV- vis spectra and morphology of PANI were respectively characterized by the resistance test

Fourier transform infrared (FTIR) spectroscopy

UV-vis spectroscopy and scanning electron microprobe measurements. The results showed that the low reaction temperature was in favor of slowing the rate of chain termination to make the polymer chain longer and charge carrier transfer easier so that the conductivity of products were excellent but too high reaction temperature can break the chain of products because of oxidation so that the conductivity of products were low. When the reaction temperature of polymerization is 10 ℃

the PANI had the highest conductivity of 1. 29 × 10

-2

(S• cm

-1

) and the highest productivity of 111. 2% and the microstructure of PANI was nanorod.