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Molecular Crystals and Liquid Crystals Volume 521, 2010 - Issue 1: Proceedings of the Xth International Conference on Frontiers of Polymers and Advanced Materials: Emerging Technologies and Business Opportunities
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Original Articles

Electrodeposition of Polypyrrole/Poly(Styrene Sulphonate) Composite Coatings on Ti6Al7Nb Alloy

Cristian Pirvu Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Bucharest, RomaniaCorrespondence[email protected]
,
Mihaela Mindroiu Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Bucharest, Romania
,
Simona Popescu Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Bucharest, Romania
&
Ioana Demetrescu Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Bucharest, Romania
Pages 126-139 | Published online: 28 May 2010
 
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Abstract

The aim of this work is to study the influence of surfactants concentration on pyrrole polimerization on Ti6Al7Nb alloy in order to improve the surface performance of such biomaterials. The electrochemical stability of the polypyrrole based composite coatings were evaluated in Hank's Balanced Salt Solution by Tafel tests, cycle voltammetry and electrochemical impedance spectroscopy (EIS). The surface analysis of composite coating type atomic force microscopy (AFM), was completed with an infrared structure evaluation. The coating properties such as electrochemical parameters, wettability and roughness can be controlled by changing the pyrrole/poly(styrene sulphonate) polymerization ratio.

Acknowledgments

The authors gratefully acknowledge the financial support of the Romanian National CNCSIS Grant IDEI PCCE 248/2008.

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