Page 517 - Polymer-based Nanocomposites for Energy and Environmental Applications

470 Polymer-based Nanocomposites for Energy and Environmental Applications

+
•
+ e –
N N
(A) H H
+
• + H
2 H N H N + 2H +
N N N
H
H H
(B) +

+
•
H
+ H +
N
N • + N N • + 2H + e –
+
H N H
(C) x H x+1

+
H
N • +
N
H N
x H
(D)

H
+ H O H N
2
N
N • O N
H H
x
(E) x
H
H
+
N
N
N N
H H x
(F)
Fig. 17.4 Electrochemical polymerization mechanism of polypyrrole.

17.6 Difference between the chemical and
electrochemical polymerization methods

Although both chemical and electrochemical methods are most common and efficient
methods for the synthesis of PPy, but there exist some significant differences between
the two methods based on the product formed. One of such differences is that it is only