Journal
NANOMATERIALS
Volume 11, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/nano11071641
Keywords
carboxylated cellulose nanocrystals; functionalization; surface treatment; nanomaterial; biomaterial
Categories
Funding
- National Research Council of Canada
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Cellulose nanocrystals (CNCs), including sulfated cellulose nanocrystals (sCNCs) and carboxylated cellulose nanocrystals (cCNCs), have unique functional properties such as high crystallinity, colloidal stability, and uniform nanoscale dimensions. cCNCs show potential advantages in commercialization activities and industrial applications compared to sCNCs, indicating a promising future development.
In recent years, cellulose nanocrystals (CNCs) have emerged as a leading biomass-based nanomaterial owing to their unique functional properties and sustainable resourcing. Sulfated cellulose nanocrystals (sCNCs), produced by sulfuric acid-assisted hydrolysis of cellulose, is currently the predominant form of this class of nanomaterial; its utilization leads the way in terms of CNC commercialization activities and industrial applications. The functional properties, including high crystallinity, colloidal stability, and uniform nanoscale dimensions, can also be attained through carboxylated cellulose nanocrystals (cCNCs). Herein, we review recent progress in methods and feedstock materials for producing cCNCs, describe their functional properties, and discuss the initial successes in their applications. Comparisons are made to sCNCs to highlight some of the inherent advantages that cCNCs may possess in similar applications.
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