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Polyatyrolsulfon acid doped polyaniline (PSSA-PANI) was synthesized by emulsion po- lymerization method, and then was characterized by IR spectra and XPS. The synthesized PSSA- PANI exhibited good solubility in water. The corrosion inhibition performance of the PSSA-PANI on mild steel was examined in acidic NaCl solutions by means of electrochemical impedance spec- troscopy (EIS). The results revealed that PSSA-PANI had a high conductivity. In the synthesized PSSA-PANI, PSSA existed in two states, namely doped-state and free-state, PSSA can improve not only the conductivity but also the water solubility of PANI. The PSSA-PANI showed good corro- sion inhibition for 20# steel in acidic NaCl media with an inhibition efficiency over 80%.
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Lv et al. (2016) studied this question.
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