Organic Electrosynthesis - Fundamentals and Applications of Organic Electrochemistry - page 250

electrochemical density and highly regulated
morphological structures, and therefore they
have possible uses as high-performance
electrochemical capacitors, ion-sieving films,
ion-selective electrodes, matrices for hosting
catalyst particles and so on.

Table 6.5 Physical properties of polypyrrol and
polythiophene films prepared electrochemically
in various media

Polymer Media Roughness

factor a
(dimensionless)

Electro-chemical
capacitance (C
cm −3 )

Polypyrrole H 2 O 3.4 77

Polypyrrole CH 3 CN 0.48 190

Polypyrrole [emim]OTf 0.29 250

Polythiophene CH 3 CN 8.6 9

Polythiophene [emim]OTf 3.3 45

a Standard deviation of thickness.

Anodic polymerization of
3-( p -fluorophenyl)thiophene was also carried
out in [emim]NTf 2 and the resulting polymer
film was also found to be very smooth [70].
Furthermore, electrosynthesis of
poly(3,4-ethylenedioxythiophene) (PEDOT)
and polyphenylene in ionic liquids has been
reported [71,72].