Synthesis of fluorescence active pyridinedicarbonitriles and studying their application in functional paper |
| |
Authors: | Altaf H Basta Adel S GirgisHoussni El-Saied Mohamed A Mohamed |
| |
Affiliation: | a Cellulose & Paper Dept., National Research Centre, Dokki-12622, Cairo, Egyptb Pesticide Chemistry Dept., National Research Centre, Dokki-12622, Cairo, Egyptc Forgery Research Dept- Medico legal Sector- Ministry of Justice, Egypt |
| |
Abstract: | The present study deals with synthesis of novel 6-alkoxy-2-amino-3,5-pyridinedicarbonitrile derivatives, as a safety marker. The fluorescence properties of the synthesized heterocyclic compounds were determined. The fluorescence quantum yield (?s) of these active compounds, relative to the fluorescence quantum yield of quinine sulfate, is reached at ~ 0.83. Application of representative synthesized examples on cotton linters and/or bagasse-based paper sheets was adopted in the present study, in an attempt to obtain safety paper from non-wood fibrous pulps. The quality of the obtained safety paper was evaluated based on both fluorescence impact and strength properties. The successful application of these fluorescent active compounds in the production of functionalized paper sheets, from bagasse pulp- cotton linter blend is demonstrated. |
| |
Keywords: | 3 5-Pyridinedicarbonitriles Arylidenemalonitriles Michael addition Fluorescent compounds Fluorescent dyes Functional paper |
本文献已被 ScienceDirect 等数据库收录! |
|