Surface modification by grafted sensitive polymer brushes: An ellipsometric study of their properties
| Autor: | Yurij Stetsyshyn, O. Zolobko, Andriy Kostruba, B. Kulyk, Mariya Ohar |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
chemistry.chemical_classification
Materials science General Physics and Astronomy Surfaces and Interfaces General Chemistry Polymer Condensed Matter Physics Grafting Surfaces Coatings and Films chemistry.chemical_compound chemistry Chemical engineering Polymerization Ellipsometry Polymer chemistry Triethoxysilane medicine Surface modification Swelling medicine.symptom Refractive index |
| Zdroj: | Applied Surface Science. 276:340-346 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2013.03.094 |
| Popis: | Thickness, refractive index and composition of coatings consisting of polymer brushes of poly(N-isopropyl acrylamide), fabricated with different polymerization times, and oligoperoxide, grafted to the glass surface with (3-aminopropyl)triethoxysilane, were determined using ellipsometry and AFM measurements at all the formation stages. Optimum grafting conditions were determined for each component of the composite film. Dry film measurements and in situ temperature depending swelling experiments were performed by multiple angle of incidence (MAI) ellipsometry. The temperature phase transition in water solution induced by collapse of the polymer brushes was detected using ellipsometry. The ability of coatings consisting of complex polymer brushes to modify physicochemical interfacial properties depending on temperature is demonstrated. |
| Databáze: | OpenAIRE |
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