Multifunctional methacrylate-based coatings for glass and metal surfaces

[Display omitted] •New methacrylate-based copolymers synthesized by free radical polymerization.•Comonomer AAMA was able to complex Cu (II) ions in solvent annealing procedure.•Coatings had efficient anti-biofouling efficacy. In order to prevent freshwater biofouling glass and metal surfaces were co...

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Bibliographic Details
Published in:Applied surface science 2017-03, Vol.399, p.205-214
Main Authors: Pospiech, Doris, Jehnichen, Dieter, Starke, Sandra, Müller, Felix, Bünker, Tobias, Wollenberg, Anne, Häußler, Liane, Simon, Frank, Grundke, Karina, Oertel, Ulrich, Opitz, Michael, Kruspe, Rainer
Format: Article
Language:English
Subjects:
Achnanthidium species
Anti-biofouling
Coating
Methacrylate copolymer
Staphylococcus aureus
Surface characterization
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Summary:[Display omitted] •New methacrylate-based copolymers synthesized by free radical polymerization.•Comonomer AAMA was able to complex Cu (II) ions in solvent annealing procedure.•Coatings had efficient anti-biofouling efficacy. In order to prevent freshwater biofouling glass and metal surfaces were coated with novel transparent methacrylate-based copolymers. The multifunctionality of the copolymers, such as adhesion to the substrate, surface polarity, mechanical long-term stability in water, and ability to form metal complexes was inserted by the choice of suitable comonomers. The monomer 2-acetoacetoxy ethyl methacrylate (AAMA) was used as complexing unit to produce copper(II) complexes in the coating’s upper surface layer. The semifluorinated monomer 1H,1H,2H,2H-perfluorodecyl methacrylate was employed to adjust the surface polarity and wettability. Comprehensive surface characterization techniques, such as X-ray photoelectron spectroscopy (XPS) and contact angle measurements showed that surface compositions and properties can be easily adjusted by varying the concentrations of the comonomers. The formation of copper(II) complexes along the copolymer chains and their stability against washing out with plenty of water was proven by XPS. Copolymers containing semifluorinated comonomers significantly inhibited the growth of Achnanthidium species. Copolymers with copper-loaded AAMA-sequences were able to reduce both the growth of Achnanthidium spec. and Staphylococcus aureus.
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2016.12.018