Conducting polymers are those polymers which conduct electricity due to extended P- orbital system. Due to this extension of P orbital electrons can move from one end to another end of the polymer.

1. Conducting polymer
Meenakshi Khatkar
Roll no. 180000701029
M.Sc Previous year

2. Contents:
• Introduction
• Examples of conducting polymers
• Conditions to become conductive
• Synthesis of different conducting polymers
• Applications of conducting polymers
• References

4. Conducting polymer:
Conducting polymers are organic polymer that conduct
electricity. Conducting polymers have an extended p-orbital
system , through which electrons can be moved from one end
to other end of polymer.
Some examples of the conducting polymers are polyacetylene,
poly(phenyl vinylene),polypyrrole,polyaniline ,polythiophene

5. Some examples of conducting polymers:

6. Condition to become conductive
There are two main condition for a polymer to become conducting
1. The first codition is that the polymer consists of alternating single
and double bond.
2. The second condition is the process of Doping.

7. Synthesis of different polymers:
• Synthesis of polyacetylene:
1. From acetylene :-
2. By ring opening metathesis polymerization:-

8. • Synthesis of polyaniline:

9. • Synthesis of polythiophene :
1. By electrochemical synthesis:-

10. 2. From bromothiophenes:-

11. • Synthesis of polypyrrole:
1.

12. Application of conducting polymers:
There are many applications of conducting polymers which is given as:
1. Used as anti-static subsances for photographic films.
2. Used as corrosion inhibitors.
3. Used in compact capacitors.
4. Used in transistors.
5. Used in light emiting diodes.
6. Used in sensors.
7. Used in solar cells.
8. Used in display screen of mobile and mini format television screen.

13. Factors that affect the conductivity:
1. Density of charge carrires
2. Their mobility
3. The direction
4. Presence of doping materials (additives that facilitate the polymer
conductivity)
5. Temperature

14. Effect of temperature

15. Conclusion:
• Conjugated polymer are semiconductor material while doped
polymers are conductor.
• The conductivity of the conductive polymer decreases with falling
temperature in contrast to the conductivities of typical metals e.g.
Silver, which increases with temperature.
• Today conductive polymer being developed for many uses.

16. References:
• M Anne Jose,Smitha Varghese and M Jinish Antony,In situ chemical
oxidative polymerisation for ordered conducting polythiophene, Vol.
55A, 2016, pp.292-297.
• J.Stejskal, R.G. Gilbert, Polyaniline, preparation of conducting
polymer, Vol. 74, 2002,pp. 859-860.