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Regioselective palladium-catalysed aerobic oxidation of dextran and its use as a bio-based binder in paperboard coatings.
- Source :
-
Green Chemistry . 4/7/2024, Vol. 26 Issue 7, p4005-4012. 8p. - Publication Year :
- 2024
-
Abstract
- The coatings industry is aiming to replace petrochemical-based binders in products such as paints and lacquers with bio-based alternatives. Native polysaccharide additives are already used, especially as adhesives, and here we show the use of oxidised dextran as a bio-based binder additive. Linear dextran with a molecular weight of 6 kDa was aerobically oxidised in water at the C3-position of its glucose units, catalysed by [(neocuproine)PdOAc]2(OTf)2. The resulting keto-dextran with different oxidation degrees was studied using adipic dihydrazide as a crosslinker in combination with the commercial petrochemicalbased binder Joncryl®. Coating experiments show that part of the Joncryl® can be replaced by ketodextran while maintaining the desired performance. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14639262
- Volume :
- 26
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Green Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 176524794
- Full Text :
- https://doi.org/10.1039/d3gc04204a