Adsorption of Hyperbranched Polysiloxysilane Modified with Triethoxy Group onto the Silicon Wafer
| Autor: | Ryohei Kikuchi, Tomoyasu Hirai, Masa Aki Kakimoto, Teruaki Hayakawa, Yasuko Yamada |
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| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
chemistry.chemical_classification
Materials science Polymers and Plastics Silicon Hydrosilylation Organic Chemistry Analytical chemistry chemistry.chemical_element Contact angle chemistry.chemical_compound Adsorption Hydrocarbon X-ray photoelectron spectroscopy chemistry Materials Chemistry Polar Wafer |
| Zdroj: | High Perfom. Polym.. 18:761-775 |
| Popis: | Triethoxysilyl functionalized hyperbranched polsiloxysilanes at the focal (FT-HBPSs) and terminal (TT-HBPSs) positions were synthesized to investigate adsorption behavior onto a silicon wafer surface. The surface of the silicon wafer adsorbed with the HBPSs was characterized by X-ray photoelectron spectroscopy, atomic force microscopy (AFM), static and dynamic water contact angle measurements. The AFM images indicated the formation size of dot-like structures were approximately 200 nm. The presence of vinyl terminal groups of FT-HBPSs permitted conversion of the surface from a non-polar hydrocarbon to a polar hydroxylated or carboxylated structures. After the polarity was changed, the surface properties were also studied using the above surface analysis techniques. The dynamic contact angle measurement indicated that the silicon wafer surface modified by FT-HBPSs was more hydrophilic in water than TT-HBPS. This behavior can be explained by the difference of connecting points between HBPS and the silicon wafer surface. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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