Synthesis and Electrochemical Characterization of New Thioether- and Ferrocene-Containing Copolymers

Abstract

Random copolymers containing both ferrocene groups and thioether groups were synthesized by free-radical copolymerization of vinylferrocene and 2-(methylthio)ethyl methacrylate, and the random nature of the copolymerization was confirmed by spectroscopic studies. Copolymers with ferrocene-to-thioether ratios of 8 : 1 and 1.2 : 1 were used to modify the surfaces of gold electrodes, and the behaviours of the resulting surface-modified electrodes were investigated by cyclic voltammetry. The SMEs based on the copolymers showed superior stability compared to SMEs based on poly(vinylferrocene), with the most stable SMEs being formed from the copolymer with the higher proportion of thioether groups.

Vinylferrocene Homopolymer and Copolymers: An Electrochemical Comparison

“…29,30 Copolymerization of the VFc with a second monomer has widened the analytical scope with further sensors being developed. [31][32][33][34] In these cases VFc was polymerized with 2-(methylthio)ethyl methacrylate, 31 2-hydroxyethyl methacrylate 32 and vinylanthracene. 33,34 In the present study the electrochemical behaviour of pVFc and various pVFc based copolymers is investigated, in order to aid in the development of long term stable, polymeric based sensors.…”

Polydivinylferrocene surface modified electrode for measuring state-of-charge of lead–acid battery

“…Accordingly, we are exploring the possibility of using organic redox couples with the view to developing a miniaturised device capable of monitoring H 2 SO 4 concentration as a function of state-of-charge of a lead-acid battery. In continuation of our previous work, [2][3][4][5][6][7][8][9][10][11][12], where we investigated several ferrocene derivatives, we report in this paper the results of our findings on polydivinylferrocene (PDVF). In the past, we have examined the following polymeric ferrocenes:…”

“…• vinylferrocene-propylene sulfide-graft copolymers [7]; • thioether and ferrocene-containing copolymers [9].…”