“…Furthermore, electrochemical and/or chemical synthesis of PANI was studied in the presence of polysulfonic acids, e.g., polystyrenesulfonic (PSSA) or poly(2-acrylamido-2-methyl-1-propanesulfonic) (PAMPSA) [ 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ]. In the recent years a series of papers [ 19 , 20 , 21 , 22 , 23 , 24 , 25 ] was devoted to the properties of PANI obtained in the presence of two poly(amidosulfonic acids) that are identical in their chemical composition but differ in the rigidity of their backbone-poly-(4,4′-(2,2′-disulfonic acid)-diphenylene-tere-phthalamide) (t-PASA, rigid backbone) and poly-(4,4′-(2,2′-disulfonic acid)-diphenylene-iso-phthalamide) (i-PASA, semi-rigid backbone) ( Scheme 1 ). On the basis of comparison of electrochemical and spectroelectrochemical properties of these interpolymer PANI films, it was supposed that flexible-chain polyacids can adapt its structure to the rigid conjugated macromolecule of emeraldine form of PANI.…”