| Autor: |
Maßmann, Sarina C., Metselaar, Gerald A., van Dijken, Derk Jan, van den Berg, Keimpe J., Witte, Martin D., Minnaard, Adriaan J. |
| Předmět: |
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| Zdroj: |
Green Chemistry; 4/7/2024, Vol. 26 Issue 7, p4005-4012, 8p |
| Abstrakt: |
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] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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