期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 60, 期 1, 页码 66-87出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202002433
关键词
analytical methods; mutarotation; nanostructures; polymerization; structure-activity relationships
资金
- Academy of Finland's Flagship Program [318890, 318891]
- Swiss National Science Foundation (SNSF)
- Adolphe Merkle Foundation (Ambizione Grant) [PZ00P2167900]
- Academy of Finland [311255]
- Academy of Finland (AKA) [311255, 311255] Funding Source: Academy of Finland (AKA)
The end-wise modification of cellulose nanocrystals allows for the creation of renewable nanomaterials with new functionalities, but poses challenges in synthesis and analysis.
Native plant cellulose has an intrinsic supramolecular structure. Consequently, it can be isolated as nanocellulose species, which can be utilized as building blocks for renewable nanomaterials. The structure of cellulose also permits its end-wise modification, i.e., chemical reactions exclusively on one end of a cellulose chain or a nanocellulose particle. The premises for end-wise modification have been known for decades. Nevertheless, different approaches for the reactions have emerged only recently, because of formidable synthetic and analytical challenges associated with the issue, including the adverse reactivity of the cellulose reducing end and the low abundance of newly introduced functionalities. This Review gives a full account of the scientific underpinnings and challenges related to end-wise modification of cellulose nanocrystals. Furthermore, we present how the chemical modification of cellulose nanocrystal ends may be applied to directed assembly, resulting in numerous possibilities for the construction of new materials, such as responsive liquid crystal templates and composites with tailored interactions.
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