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The role of water in the electrochemical polymerization of pyrroles

✍ Scribed by G. Zotti; G. Schiavon; A. Berlin; G. Pagani

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
301 KB
Volume
34
Category
Article
ISSN
0013-4686

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✦ Synopsis

The iniluence of water in the anodic coupling of two pyrrole monomers (3-methylthiopyrrole (1) and dihydrobenzo-[1.2-b:4$b']-dipyrrole (2)) to polypyrrole in acetonitrilc was investigated by cyclic voltammetry and controlled potential electrolysis. Oxidation requires 1 e-mol-' in anhydrous conditions and (2 + x) e-mol-' (x =0.25 and 0.5 for (1) and (2) respectively) in the presence of 1% H1O. The ESUhB are explained by competitive proton scavenging action of pyrrole and water.

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