(a) Describe a suitable chemical synthesis and doping of highly conducting polyaniline (PANI). (b) Contrast the doping of PANI with the doping of other conducting polymers such as poly(3-hexylthiophene). (c) Use the case of self-doped polyaniline to examine the concept of a self-doped conducting polymer; include the design, synthesis, properties and advantages of such a class of conducting polymers