17  5,783Jll  18  Comparative Example Illa (Outside of the  Invention)  Comparative Example la  TABLE 2a  pyrogallol  red  pyrocatechol violet  cresol  red  phenol red  xylenol blue  Examples of sulfodyes  HO  OH  OH  0  ◊,OH  Cf-C◊OH  SO3"  OH  0  c~o  Cf-c◊oo  SO3"  CH3  0  0  Cf-COOH  SO3"  0  CH3-n  n,_Vft"  L{  C  ’=(- OH  SO3"  CH3  0  PANI-complex  Organic comp01md  Solubility  PANI(CSA)o.,  3-methoxy phenol  Good  PANI(DBSA)o_$_{5 }$ 3-methoxy phenol  Moderate  PANI(MSA)o.,,  3-methoxy phenol  No  PANI(CSA)o.,,  2-methyl-4-methyl phenol  Good  PANI(DBSA)o_$_{5 }$ 2-methyl-4-methyl phenol  Poor  PANI(MSA)o.,,  2-methyl-4-methyl phenol  No  PANI(CSA)o.,,  m-cresol  Good  PANI(DBSA)o_$_{5 }$ m-<:resol  Poor  PANI(MSA)o_,,  m-<:resol  No  PANI(CSA)$_{0}$.,,  p-<:resol  Moderate  PANI(DBSA)$_{0}$.s  p-<:resol  No  PANI(MSA)o.,,  p-<:resol  No  PANI(DBSA)o_$_{5}$•  PANI(CSA)$_{0}$ _$_{5 }$and  PANl(MSA)$_{0}$ _ $_{5 }$were  prepared using Method A-2. The solubility of 10 parts by  weight of PANI(DBSA)$_{0}$ _ 5 • PANI(CSA)o_ $_{5}$and PANI(MSA)  0 _ $_{5 }$to 90 parts by weight of hydroquinone (HQ) or Methyl  hydroquinone MeHQ was studied according  to Method B  using mixing temperature of 200°-210°  C.  Note that  all  sulphonic acids are strong acids with typi› cally pKa<l. thus being strongly corrosive. Henceforth their  technological value is questionable. Therefore in this patent  application the inventors searched for substantially less  acidic solvents.  WO 93/15510 discloses also xylenol orange and sulfor› hodamines which  all  are also sulphonic acids. According to  Comparative Example la the sulphodyes of WO 93/15510  (being sulphonic acids) are solvents of sulphonic acid doped  PANI (taken that the particular sulfodyes melt at all).  In particular WO 92/22911 does not teach how  to render  PANI doped by any sulphonic acid (such as the simplest  sulphonic acid  MSA)  or in general organic acid highly  soluble.  One concludes that the high solubility to 3-methoxy  phenol. 2-methyl-4-methyl phenol. m-cresol and p-cresol. as  taught by WO 92/22911, is limited to PANI protonated by  selected i.e. specific sulphonic acid counter ions, such as  CSA.  According to the teachings of WO 92/22911. DBSA and  CSA were selected to be the protonating acids to prepare  PANl(DBSA)o.s and PANI(CSA)$_{0 }$$_{5}$. Outside WO 92/22911.  MSA was selected as the most simple sulphonic acid dopant  to form  PANl(MSA)$_{0}$ _ 5 .  The protonations were performed  according to Method  A2. Further more, typical solvents of  WO 92/22911 were selected: 3-methoxy phenol. 2-methyl- 4-methyl phenol, m-cresol and p-cresol. The solubility of 10  parts by weight of PANl(DBSA)$_{0}$ _ 5 •  PANI(CSA)$_{05 }$ and  PANI(MSA)$_{0}$ _ 5  to 90 parts by weight of 3-methoxy phenol.  2-methyl-4-methyl phenol. m-cresol and p-cresol was stud› ied according to Method B using mixing temperature of  200°-210°  C.  It is  known  from previous art that solubility of high  polymers to solvents is augmented by strong specific inter› actions between the solvent and polymer molecules.  If one  exposes emeraldine base to sulphonic acid, one of the  expected specific interactions is protonation of the iminic  nitrogens. The essential protonation is known in the previous  art to take place only  if the acid is sufficiently acidic with  pKa  less than about 3. Therefore in the following the  inventors search for novel solvents which are not able to  protonate i.e. are less acidic i.e.  pKa  is greater than about 3. 