期刊
ADVANCES IN COLLOID AND INTERFACE SCIENCE
卷 222, 期 -, 页码 502-508出版社
ELSEVIER
DOI: 10.1016/j.cis.2014.05.004
关键词
Cellulose dissolution; Cellulose regeneration; Hydrophobic interactions; Hydrogen bonding; Solvents
资金
- Portuguese Foundation for Science and Technology (FCT) [PTDC/AGR-TEC/4049/2012, SFRH/BPD/74540/2010]
- Sodra Skogsagarnas Stiftelse
- Stiftelsen Nils och Dorthi Troedssons forskningsfond
- CelluNova consortium
The development of cellulose dissolution/regeneration strategies constitutes an increasingly active research field. These are fundamental aspects of many production processes and applications. A wide variety of suitable solvents for cellulose is already available. Nevertheless, most solvent systems have important limitations, and there is an intense activity in both industrial and academic research aiming to optimize existing solvents and develop new ones. Cellulose solvents are of highly different nature giving great challenges in the understanding of the subtle balance between the different interactions. Here, we briefly review the cellulose dissolution and regeneration mechanisms for some selected solvents. Insolubility is often attributed to strong intermolecular hydrogen bonding between cellulose molecules. However, recent work rather emphasizes the role of cellulose charge and the concomitant ion entropy effects, as well as hydrophobic interactions. (C) 2014 Published by Elsevier B.V.
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