Hybrid polymer sol–gel material for UV-nanoimprint: microstructure and thermal densification
| Autor: | Franziska Back, Peer Löbmann, Matthias Bockmeyer, Eveline Rudigier-Voigt |
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| Rok vydání: | 2013 |
| Předmět: |
chemistry.chemical_classification
Materials science General Chemistry Polymer Porosimetry Condensed Matter Physics Microstructure Soft lithography Electronic Optical and Magnetic Materials Biomaterials chemistry Materials Chemistry Ceramics and Composites Thermal stability Composite material Thin film Hybrid material Sol-gel |
| Zdroj: | Journal of Sol-Gel Science and Technology. 66:73-83 |
| ISSN: | 1573-4846 0928-0707 |
| Popis: | Hybrid polymer solutions suitable for UV-nanoimprint were synthesized by combination of an alkoxysilane binder mixture with silica nanoparticles. Hydrolysis and condensation reactions were monitored by NMR and viscosity measurements. Thereby long-term stable systems were produced as a prerequisite for industrial application. Dip-coating of glass substrates and subsequent UV-curing yielded thin films. Their thermal densification and microstructural evolution resulted in pure glassy porous coatings, which were in detail characterized by N2-sorption measurements and ellipsometric porosimetry. Results emphasize the importance of the binder-particle interaction within these materials that are destined for the fabrication of microstructured surfaces by cost efficient and industrially feasible UV-based soft lithography. Structured glassy layers with high inorganic content show thermal stability up to >500 °C and have a high structure accuracy >85 %. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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