Effect of 5-sulfosalicylic acid and poly[2,5-bis(3-sulfonatopropoxy)-1,4-ethynylphenylene-alt-1,4-ethynylphenylene] on electrodeposition of polypyrrole–carbon nanotube films on stainless steel

Polypyrrole (PPY) films were obtained on stainless steel substrates by anodic electropolymerization using sulfosalicylic acid (SSA) as an anionic dopant. SSA adsorption prevented anodic oxidation of stainless steel during electropolymerization, provided efficient charge transfer and enabled the formation of adherent films. It was shown that poly[2,5-bis(3-sulfonatopropoxy)-1,4-ethynylphenylene-alt-1,4-ethynylphenylene] sodium salt provided …