A brief review on the use of chelation agents in sol-gel synthesis with emphasis on β-diketones and β-ketoesters
Metal alkoxides are the most commonly used sol-gel process precursors. Most alkoxides show excessive reactivity towards water. That leads to rapid hydrolysis, metal hydroxide formation, and immediate precipitation. The reactivity of alkoxides can be reduced by modification with chelation agents. Che...
| Permalink: | http://skupni.nsk.hr/Record/nsk.NSK01001068871/Details |
|---|---|
| Matična publikacija: |
Chemical & biochemical engineering quarterly (Online) 33 (2019), 3 ; str. 295-301 |
| Glavni autor: | Kurajica, Stanislav (Author) |
| Vrsta građe: | e-članak |
| Jezik: | eng |
| Predmet: | |
| Online pristup: |
https://doi.org/10.15255/CABEQ.2018.1566 Chemical & biochemical engineering quarterly (Online) Hrčak |
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| 024 | 7 | |2 doi |a 10.15255/CABEQ.2018.1566 | |
| 035 | |a (HR-ZaNSK)001068871 | ||
| 040 | |a HR-ZaNSK |b hrv |c HR-ZaNSK |e ppiak | ||
| 041 | 0 | |a eng |b eng | |
| 042 | |a croatica | ||
| 044 | |a ci |c hr | ||
| 080 | 1 | |a 66 |2 2011 | |
| 100 | 1 | |a Kurajica, Stanislav |4 aut | |
| 245 | 1 | 2 | |a A brief review on the use of chelation agents in sol-gel synthesis with emphasis on β-diketones and β-ketoesters |h [Elektronička građa] / |c S. Kurajica. |
| 300 | |b Ilustr. | ||
| 504 | |a Bibliografija: 47 jed. | ||
| 504 | |a Summary. | ||
| 520 | |a Metal alkoxides are the most commonly used sol-gel process precursors. Most alkoxides show excessive reactivity towards water. That leads to rapid hydrolysis, metal hydroxide formation, and immediate precipitation. The reactivity of alkoxides can be reduced by modification with chelation agents. Chelation influences the gelation process, which is reflected in gel structure and properties of the final material. In this short review, the chelation process, the oligomerization phenomena, and the influence of the chelating agent on the gel structure are discussed. Peculiarities of the use of FTIR and NMR, as methods particularly suitable for the investigation of chelation process, are described taking ethyl acetoacetate as an example. | ||
| 653 | 0 | |a Alkoksidi |a Sol-gel postupak |a Kelacija |a FTIR spektroskopija |a Nuklearna magnetska rezonancija |a NMR | |
| 773 | 0 | |t Chemical & biochemical engineering quarterly (Online) |x 1846-5153 |g 33 (2019), 3 ; str. 295-301 |w nsk.(HR-ZaNSK)000622963 | |
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| 856 | 4 | 0 | |u https://doi.org/10.15255/CABEQ.2018.1566 |
| 856 | 4 | 0 | |u http://silverstripe.fkit.hr/cabeq/past-issues/article/1566 |y Chemical & biochemical engineering quarterly (Online) |
| 856 | 4 | 0 | |u https://hrcak.srce.hr/225894 |y Hrčak |
| 856 | 4 | 1 | |y Digitalna.nsk.hr |