Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/198489

Title

Hydrolysis and stability of thin pulsed plasma polymerised maleic anhydride coatings

Author(s)

Drews, Joanna;  Launay, Helene;  Hansen, Charles M.;  West, Keld;  Hvilsted, Soren;  Kingshott, Peter;  Almdal, Kristoffer

Abstract

The stability of plasma polymerised layers has become important because of their widespread use. This study explored the hydrolysis and degradation stability of coatings of plasma polymerised maleic anhydride. Coatings made with different plasma parameters were exposed to aqueous media of different pH as a function of time. ATR-FTIR was used for structure analysis and a toluidine blue staining method allowed quantitative analysis of the hydrolysis of anhydride groups to acid groups. Coatings with constant thickness were obtained at different plasma powers and layers with varying thickness were obtained at constant plasma power by adjusting the polymerisation time. The results show that the hydrolysis resistance of the modified layer is determined by the power used in the plasma polymerisation, while changes in the chemistry of the modified layer are insignificant.

Publication type

Journal article

Source

Applied Surface Science, Vol. 254, no. 15 (May 2008), pp. 4720-4725

Publication year

2008

FOR Code(s)

0204 Condensed Matter Physics;  0912 Materials Engineering

Keyword(s)

AC plasma;  Anhydride groups;  Chemical stability;  Coatings;  Crosslinking;  Degradation stability;  Hydrolysis;  Maleic anhydride;  Organic coatings;  Plasma polymerisation;  Swelling

Publisher

Elsevier

ISSN

0169-4332

Publisher URL

http://dx.doi.org/10.1016/j.apsusc.2008.01.085

Copyright

Copyright © 2008 Elsevier B.V. All rights reserved.

Peer reviewed