Robust superbase-based emerging solvents for highly efficient dissolution of cellulose.
Cellulose dissolution
Emerging task-specific solvents
Hydrogen bonds
Polarizability
Superbase-based solvents
Journal
Carbohydrate polymers
ISSN: 1879-1344
Titre abrégé: Carbohydr Polym
Pays: England
ID NLM: 8307156
Informations de publication
Date de publication:
15 Nov 2021
15 Nov 2021
Historique:
received:
02
04
2021
revised:
07
07
2021
accepted:
11
07
2021
entrez:
23
8
2021
pubmed:
24
8
2021
medline:
4
1
2022
Statut:
ppublish
Résumé
The development of robust solvent systems for cellulose dissolution is of significant importance for cellulose utilization and transformation. Herein, six kinds of novel superbase-based solvents were designed by a combination of 1,5-diazabicyclo[4.3.0]non-5-ene (DBN) with pyridine N-oxide (PyO) or 2-picoline-N-oxide (PiO) for dissolution of cellulose. It was observed that the prepared superbase-based solvents (denoted as DBN-PyO-x and DBN-PiO-4) could efficiently dissolve cellulose at mild temperatures (<80 °C). The chemical structure of the prepared superbase-based solvents and the molar ratio of the components significantly affected the solubility of cellulose, and DBN-PyO-4 showed the best performance with a cellulose solubility of 14.1 wt% 70 °C. The systematic study revealed that the good performance of the prepared superbase-based solvents on cellulose dissolution resulted from the synergistic effect of their ability to form hydrogen bonds and their polarizability.
Identifiants
pubmed: 34420714
pii: S0144-8617(21)00841-9
doi: 10.1016/j.carbpol.2021.118454
pii:
doi:
Substances chimiques
Bridged Bicyclo Compounds, Heterocyclic
0
Picolines
0
Pyridines
0
Solvents
0
Cellulose
9004-34-6
pyridine N-oxide
91F12JJJ4H
1,5-diazabicyclo(4.3.0)non-5-ene
978M4OL12Q
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
118454Informations de copyright
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