Hydrolysis and stability of thin pulsed plasma polymerised maleic anhydride coatings

Joanna Maria Drews, Héléne Launay, Charles M. Hansen, Keld West, Søren Hvilsted, Peter Kingshott, Kristoffer Almdal

Research output: Contribution to journalJournal articleResearchpeer-review


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.
Original languageEnglish
JournalApplied Surface Science
Issue number15
Pages (from-to)4720-4725
Publication statusPublished - 2008


  • AC plasma
  • Cross-linking
  • Swelling
  • Maleic anhydride
  • Coatings

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