liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Electrochemical and XPS studies toward the role of monomeric and polymeric sulfonate counterions in the synthesis, composition, and properties of poly(3,4-ethylenedioxythiophene)
Istituto CNR l'Energetica Interfasi, C.o Stati Uniti 4, 35127 Padova, Italy.
Istituto CNR l'Energetica Interfasi, C.o Stati Uniti 4, 35127 Padova, Italy.
Istituto CNR l'Energetica Interfasi, C.o Stati Uniti 4, 35127 Padova, Italy.
R and D Materials Research, Chemistry Department, Agfa Gevaert N.V., Septelaan 27, B-2640 Mortsel, Belgium.
Show others and affiliations
2003 (English)In: Macromolecules, ISSN 0024-9297, Vol. 36, no 9, 3337-3344 p.Article in journal (Refereed) Published
Abstract [en]

Electrochemically prepared poly(3,4-ethylenedioxythiophene) (PEDT) poly(styrenesulfonate) (PSS), produced from acidic (PSSH) and basic (PSSNa) PSS, was characterized by cyclic voltammetry CV, UV-vis spectroscopy, in situ conductivity, and XPS spectroscopy and was compared with electrochemically prepared PEDT/tosylate and chemically prepared PEDT/PSS. CV analysis shows that the polymer synthesis is strongly affected by the nucleophilic character of the counteranion. Although CV and UV-vis spectroscopy show that the structure and degree of polymerization (oligomeric, ca. 10 EDT units) of the PEDT backbone is the same for all polymers, XPS is able to explain the different conductivity values for these materials (ranging from 1 S cm-1 for PEDT/PSSNa to 400-450 S cm-1 for PEDT/tosylate) based on doping level and composition. In particular, critical results are observed to be the ratios between sulfonate and thiophene units in the polymers: the higher the PEDT concentration, the higher the conductivity. XPS also explains by solvent-induced nanometer-scale segregation between PEDT/PSS and excess PSS particles the often reported conductivity enhancement of chemically prepared PEDT/PSS upon treatment with polar solvents.

Place, publisher, year, edition, pages
2003. Vol. 36, no 9, 3337-3344 p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-46638DOI: 10.1021/ma021715kOAI: diva2:267534
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2013-09-12

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Crispin, XavierOsikowicz, WojciechSalaneck, William RFahlman, Mats
By organisation
The Institute of TechnologyDepartment of Science and TechnologySurface Physics and Chemistry
In the same journal
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 71 hits
ReferencesLink to record
Permanent link

Direct link