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Synthesis and Electrochemical Characterization of Poly(2‐methoxy‐4‐vinylphenol) with MWCNTs
Author(s) -
Corrêa Cátia Crispilho,
Santhiago Murilo,
de Carvalho Castro e Silva Cecília,
Barboza Formiga André Luiz,
Kubota Lauro Tatsuo
Publication year - 2011
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201100233
Subject(s) - overpotential , redox , electrochemistry , materials science , carbon nanotube , polymerization , dimethylformamide , polymer chemistry , dispersion (optics) , reaction rate constant , catechol , glassy carbon , electrode , chemical engineering , chemistry , kinetics , organic chemistry , cyclic voltammetry , polymer , nanotechnology , composite material , engineering , physics , quantum mechanics , solvent , optics , metallurgy
The present work describes a simple grafting of poly‐2‐methoxy‐4‐vinylphenol to multiwalled carbon nanotubes (MWCNTs) by in situ free radical polymerization. The synthesis was performed using mild conditions and the product (MWCNTs/pMVP) was stable for at least 6 months. Also, the dispersion of the MWCNTs/pMVP in dimethylformamide remained homogeneously distributed for up to 2 days, facilitating the modification of glassy carbon electrode. After an in situ activation process, the stable redox couple was formed (catechol/quinone) being able to electrocatalyze NADH oxidation at low overpotential with a high rate constant ( k obs ).