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M. Łapkowski, M. Jadamiec, D. L. Officer, P. Wagner, A. Stolarczyk, K. C. Gordon, W. W. Sułkowski, M. Bartoszek

Investigations of electrochemical and spectroelectrochemical properties (UV-Vis, EPR)

of thiophene trimer derivatives substituted with phenylvinyl groups
Polimery 2009, No 3, 209


Summary

The results of investigations concerning electrochemical properties of two thiophene trimers derivatives substituted with phenylvinyl groups {3'[(E)-2-phenylethenyl]-2,2':5',2''-thiophene (monomer A) and 4,4''-didecyloxy-3'[(E)-2-phenylethenyl]-2,2':5',2''-thiophene (monomer B)} and the products of their oxidation were discussed. Electropolymerizations of A and B monomers were carried out with use of cyclic voltammetry and electrochemical measurements were coupled in-situ with spectroscopic methods (UV-Vis, EPR). It was found that A monomer oxidized to oligomers soluble in dichloromethane (Fig. 1-4 and 7) while monomer B showed ability to form stable conductive polymer layers showing low-energy forbidden band (1.6eV) (Fig. 1, 5, 6 and 8, 9).


Key words: conductive polymers, thiophene trimer, phenylvinyl group, electropolymerization, electrochemical and spectroelectrochemical properties


e-mail: Malgorzata.Jadamiec@polsl.pl


M. Łapkowski, M. Jadamiec, D. L. Officer, P. Wagner, A. Stolarczyk, K. C. Gordon, W. W. Sułkowski, M. Bartoszek

Investigations of electrochemical and spectroelectrochemical properties (UV-Vis, EPR) of thiophene trimer derivatives substituted with phenylvinyl groups