Carbonate radical induced polymerisation of pyrrole: A steady state and flash photolysis study
- Cite this article as:
- Bhattacharya, A., De Amitabha & Mandal, P.C. J Radioanal Nucl Chem (1998) 230: 91. doi:10.1007/BF02387452
Conventionally polymerisation of pyrrole is carried out either by chemical or electrochemical oxidation. In the present study polymerisation of pyrrole was carried out in a novel way in order to investigate the kinetics of the reactions involved. Carbonate radical (CO3−) generated either radiolytically or photolytically from a sodium carbonate solution, was employed as the oxidant for the polymerisation reaction Flash photolysis and steady state ψ-radiolysis of pyrrole solution containing sodium carbonate was used for generating different intermediate and stable polymeric species. The kinetics of the formation and decay of different intermediate species were studied using UV-VIS spectrophotometry and the disappearances of the monomer was ascertained using HPLC. After analysing the species and steps involved a plausible mechanism for the polymerisation of pyrrole is suggested.