Hydrophobin as a nanolayer primer that enables the fluorinated coating of poorly reactive polymer surfaces
| Autor: | Markus Linder, Arja Paananen, Pierangelo Metrangolo, Claudio Corti, Lara Gazzera, Gabriella Cavallo, Ludovico Valli, Giuseppe Resnati, Roberto Milani, Alessandro Monfredini, Simona Bettini, Gabriele Giancane, Lisa Pirrie |
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| Přispěvatelé: | Gazzera, L, Corti, C, Pirrie, L, Paananen, A, Monfredini, A, Cavallo, G, Bettini, Simona, Giancane, Gabriele, Valli, Ludovico, Linder, M. B, Resnati, G, Milani, R, Metrangolo, P., Department of Biotechnology and Chemical Technology, Department of Bioproducts and Biosystems, Aalto-yliopisto, Aalto University |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
hydrophobin
Materials science Hydrophobin education ta220 engineering.material coating electrostatic interactions perfluorinated polymers self-assembly Mechanical Engineering Mechanics of Materials chemistry.chemical_compound Coating Polymer chemistry ta216 ta215 chemistry.chemical_classification Polypropylene Primer (paint) perfluorinated polymer Polymer chemistry Chemical engineering electrostatic interaction engineering Surface modification Polystyrene Self-assembly |
| Zdroj: | Gazzera, L, Corti, C, Lisa, P, Paananen, A, Monfredini, A, Cavallo, G, Bettini, S, Giancane, G, Valli, L, Linder, M B, Resnati, G, Milani, R & Metrangolo, P 2015, ' Hydrophobin as a nanolayer primer that enables the fluorinated coating of poorly reactive polymer surfaces ', Advanced Materials Interfaces, vol. 2, no. 14, 1500170 . https://doi.org/10.1002/admi.201500170 |
| ISSN: | 2196-7350 |
| Popis: | A new and simple method is presented to fluorinate the surfaces of poorly reactive hydrophobic polymers in a more environmentally friendly way using the protein hydrophobin (HFBII) as a nanosized primer layer. In particular, HFBII, via electrostatic interactions, enables the otherwise inefficient binding of a phosphate-terminated perfluoropolyether onto polystyrene, polypropylene, and low-density polyethylene surfaces. The binding between HFBII and the perfluoropolyether depends significantly on the environmental pH, reaching the maximum stability at pH 4. Upon treatment, the polymeric surfaces mostly retain their hydrophobic character but also acquire remarkable oil repellency, which is not observed in the absence of the protein primer. The functionalization proceeds rapidly and spontaneously at room temperature in aqueous solutions without requiring energy-intensive procedures, such as plasma or irradiation treatments. |
| Databáze: | OpenAIRE |
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