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

Direct link
Good adhesion between chemically oxidized titanium and electrochemically deposited polypyrrole
Laboratory of Physical Chemistry, Tallinn Tech. Univ., Ehitajate T., Tallinn, Estonia.
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics .
Edison Centre, Pikk 39, 10133, Tallinn, Estonia.
2000 (English)In: Electrochimica Acta, ISSN 0013-4686, Vol. 45, no 13, 2121-2130 p.Article in journal (Refereed) Published
Abstract [en]

A method for producing extremely adhesive polypyrrole (Ppy) films is described. The electrochemical synthesis of Ppy on thin chemically pre-oxidized Ti layers produces a mechanically strong, shiny polymer film with extremely good adhesion. Adhesion of Ppy films on Ti metal without chemical pre-oxidation is very weak. Two multilayer systems are described with Ppy as an electrochemically active layer, chemically oxidized Ti (TixOy) as a thin adhesive layer, and either a Si-wafer or Al foil as a substrate. Ppy films survive more than 6000 reduction-oxidation cycles in aqueous electrolyte without delamination. The possible mechanisms of enhanced adhesion are discussed. Those are: (1) increased adhesion due to changes in the chemical composition and surface structure of the pre-oxidized Ti, (2) the possibility of the chemical oxidation of pyrrole on the metal surface in addition to the electrochemical polymerization, (3) the adsorption of pyrrole molecules onto pre-oxidized Ti surface by interaction with Ti hydroxides on surface, and (4) the simultaneous growth of TixOy and Ppy.

Place, publisher, year, edition, pages
2000. Vol. 45, no 13, 2121-2130 p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-47683DOI: 10.1016/S0013-4686(99)00433-8OAI: diva2:268579
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2011-01-14

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Inganäs, Olle
By organisation
The Institute of TechnologyBiomolecular and Organic Electronics
In the same journal
Electrochimica Acta
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: 86 hits
ReferencesLink to record
Permanent link

Direct link