Novel titration method for surface-functionalised silica
| Autor: | Chiu Ping Candace Chan, Siegfried Weber, Peter Majewski, Kai Hofen |
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| Přispěvatelé: | Hofen, Kai, Weber, Siegfried, Chan, Chiu Ping Candace, Majewski, Peter |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
titration
Chemical substance Iminodiacetic acid Inorganic chemistry General Physics and Astronomy Surfaces and Interfaces General Chemistry Condensed Matter Physics Mass spectrometry Surfaces Coatings and Films chemistry.chemical_compound chemistry Triethoxysilane Particle Titration Hydrate Science technology and society functionalised silica |
| Popis: | This paper describes three inexpensive and fast analytical methods to characterise grafted particle surfaces. The reaction of silica with (3-aminopropyl) triethoxysilane, (3-mercaptopropyl)trimethoxysilane and N-(phosphonomethyl) iminodiacetic acid hydrate, respectively, leads to NH2-, SO3H- or COOH-functionalised silica, which were characterised by X-ray photoelectron spectrometry and titration in nonaqueous media as well as with two titration methods in a water-based environment. In the work presented, factors influencing the titrations are pointed out and solutions are presented to overcome these limiting factors are shown. Refereed/Peer-reviewed |
| Databáze: | OpenAIRE |
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