Surface segregation of fluorine-ended monomers
| Autor: | M.G.D. van der Grinten, Aldo Priola, Roberta Maria Bongiovanni, T.E. Shearmur, A.S. Clough |
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| Rok vydání: | 1996 |
| Předmět: |
Materials science
Substrate (chemistry) chemistry.chemical_element Polyethylene Surfaces Coatings and Films Electronic Optical and Magnetic Materials Biomaterials Surface tension Contact angle chemistry.chemical_compound Colloid and Surface Chemistry Monomer chemistry Polymer chemistry Fluorine Polar Wetting |
| Zdroj: | Politecnico di Torino-IRIS |
| Popis: | Rutherford backscattering (RBS) and contact angle measurements were used to study surface segregation in polymeric films. The films consisted of the UV-curable resin 4,4′-isopropylidenediphenylethoxy diacrylate to which the fluorinated acrylic monomer 2-(N-butylperfluorooctanesulfonamido) ethylacrylate was added. The resins were coated on a quartz substrate and on a high density polyethylene substrate which have different polarities and surface tensions. The fluorinated monomer is shown to segregate to the surface, which creates a hydrophobic surface. When an apolar substrate is used the monomer enriches both interfaces, while if a polar substrate is used the monomer preferentially enriches the air interface. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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