These organic polymers which have properties like metals, being composed wholly of elements like
carbon, hydrogen and occasionally nitrogen, oxygen or sulphur, are much lighter than normal metals and can be used
for making light-weight batteries Besides, they have the mechanical properties of polymers such as flexibility so that
one can make electronic devices such as transistors that can bend like a sheet of plastic For the discovery of conducting
polymers, MacDiarmid, Heeger and Shirakawa were awarded the Nobel Prize in Chemistry for the year 2000 It can be seen from Table 2