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Iron-Catalyzed Polymerization of Alkoxysulfonate-Functionalized 3,4-Ethylenedioxythiophene Gives Water-Soluble Poly(3,4-ethylenedioxythiophene) of High Conductivity

Karlsson, Roger (author)
Linköpings universitet,Organisk Kemi,Tekniska högskolan
Herland, Anna (author)
Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska högskolan
Hamedi, Mahiar (author)
Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska högskolan
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Wigenius, Jens (author)
Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska högskolan
Åslund, Andreas (author)
Linköpings universitet,Organisk Kemi,Tekniska högskolan
Liu, Xianjie (author)
Linköpings universitet,Ytors Fysik och Kemi,Tekniska högskolan
Fahlman, Mats (author)
Linköpings universitet,Ytors Fysik och Kemi,Tekniska högskolan
Inganäs, Olle (author)
Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska högskolan
Konradsson, Peter (author)
Linköpings universitet,Organisk Kemi,Tekniska högskolan
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 (creator_code:org_t)
2009-04-14
2009
English.
In: Chemistry of Materials. - : American Chemical Society (ACS). - 0897-4756 .- 1520-5002. ; 21:9, s. 1815-1821
  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • Chemical polymerization of a 3,4-ethylenedioxythiophene derivative bearing a sulfonate group (EDOTS) is reported. The polymer, PEDOT-S, is fully water-soluble and has been produced by polymerizing EDOT-S in water, using Na2S2O8 and a catalytic amount of FeCl 3. Elemental analysis and XPS measurements indicate that PEDOT-S is a material with a substantial degree of self-doping, but also contains free sulfate ions as charge-balancing counterions of the oxidized polymer. Apart from selfdoping PEDOT-S, the side chains enable full water solubility of the material; DLS studies show an average cluster size of only 2 nm. Importantly, the solvation properties of the PEDOT-S are reflected in spin-coated films, which show a surface roughness of 1.2 nm and good conductivity (12 S/cm) in ambient conditions. The electro-optical properties of this material are shown with cyclic voltammetry and spectroelectrochemical experiment reveals an electrochromic contrast (̃48% at λmax ) 606 nm).

Subject headings

NATURVETENSKAP  -- Kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences (hsv//eng)

Keyword

Ambient conditions
Catalytic amounts
Catalyzed polymerization
Chemical polymerization
Cluster sizes
Counterions
Electrochromic contrast
Electrooptical properties
Elemental analysis
Ethylenedioxythiophene
Functionalized
High conductivity
Self-doping
Side chains
Solvation properties
Spectroelectrochemical
Spin-coated films
Sulfate ion
Sulfonate groups
Water solubilities
XPS measurements
NATURAL SCIENCES

Publication and Content Type

ref (subject category)
art (subject category)

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