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Electrochemical and chemical synthesis and characterization of sulfonated poly(3,4‐ethylenedioxythiophene): A novel water‐soluble and highly conductive conjugated oligomer
Author(s) -
Zotti Gianni,
Zecchin Sandro,
Schiavon Gilberto,
Groenendaal L. ‘Bert’
Publication year - 2002
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/1521-3935(200209)203:13<1958::aid-macp1958>3.0.co;2-x
Subject(s) - polymerization , monomer , polymer chemistry , cyclic voltammetry , chemistry , conductive polymer , polymer , acetonitrile , conductivity , electrochemistry , solubility , sulfonate , perchloric acid , inorganic chemistry , organic chemistry , electrode , sodium
Electrochemical and chemical polymerization of a 3,4‐ethylenedioxythiophene derivative bearing a sulfonate group (EDTS) is reported. The electrochemical polymer, poly(EDTS), which is very soluble in water, has been produced both from acidic water, resulting in the solution form, and from acetonitrile using additional perchloric acid in 1:1 ratio to the monomer, resulting in the production of polymer films. Both forms were characterized by cyclic voltammetry, UV‐Vis spectroscopy, EQCM analysis, MALDI‐TOF MS and conductivity measurements, and show high conductivity (0.5–10 S · cm −1 ) and high solubility in water (> 10%). Poly(EDTS) was also prepared by chemical polymerization with Fe(OTs) 3 in water to yield once more a water‐soluble and conductive (1–5 S · cm −1 ) polymer.