Fluorescent Multifunctional Polysaccharides for Sustainable Supramolecular Functionalization of Fibers in Water
| Autor: | Olga Grigoray, Thomas Heinze, Annett Pfeifer, Pedro Fardim, Holger Wondraczek |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Renewable Energy
Sustainability and the Environment General Chemical Engineering Pulp (paper) Cationic polymerization 02 engineering and technology General Chemistry engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Fluorescence Polyelectrolyte 0104 chemical sciences chemistry.chemical_compound Adsorption chemistry Polymer chemistry engineering Environmental Chemistry Surface modification Moiety Cellulose 0210 nano-technology |
| Zdroj: | ACS Sustainable Chemistry & Engineering. 5:1794-1803 |
| ISSN: | 2168-0485 |
| DOI: | 10.1021/acssuschemeng.6b02539 |
| Popis: | The paper describes the synthesis of multifunctional cellulose derivatives (MCDs) containing a fluorescent and a cationic moiety and their application in the functionalization of pulp fibers. The cellulose derivatives, namely N-(3-propanoic acid)- and N-(4-butanoic acid)-1,8-naphthalimide esters of cellulose, differed in the degree of substitution (DS) and by the aliphatic chain connecting naphthalimide photoactive groups to the polymer backbone. The derivatives were decorated with a cationic moiety, namely (3-carboxypropyl)trimethylammonium chloride. The fluorescent pulp fibers were prepared by direct self-assembly of the water-soluble fluorescent MCDs on the fibers in water at room temperature. The results indicated that the adsorption was mainly driven by an ion exchange mechanism. UV–vis and fluorescence spectroscopic studies showed that the adsorption yield of the fluorescent MCDs depended on the length of the aliphatic chain of the photoactive groups. Because of the adsorption, the modified pulp fib... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|