Journal article
Hydrolysis and stability of thin pulsed plasma polymerised maleic anhydride coatings
Department of Chemical and Biochemical Engineering, Technical University of Denmark1
Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
The Danish Polymer Centre, Department of Chemical and Biochemical Engineering, Technical University of Denmark3
Amphiphilic polymers in biological sensing Group, Self-organizing materials for nanotechnology Section, Department of Micro- and Nanotechnology, Technical University of Denmark4
Self-organizing materials for nanotechnology Section, Department of Micro- and Nanotechnology, Technical University of Denmark5
Department of Micro- and Nanotechnology, Technical University of Denmark6
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.
Language: | English |
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Year: | 2008 |
Pages: | 4720-4725 |
ISSN: | 18735584 and 01694332 |
Types: | Journal article |
DOI: | 10.1016/j.apsusc.2008.01.085 |
ORCIDs: | Almdal, Kristoffer |