期刊
CELLULOSE
卷 23, 期 6, 页码 3569-3576出版社
SPRINGER
DOI: 10.1007/s10570-016-1052-5
关键词
Cellulose nanocrystals; Cationization; Surface modification; One-pot reaction
资金
- Malaysian government [mosti/bmi/taji-3/2 jilid]
- Research Foundation-Flanders (FWO) [G.0C60.13N]
- KU Leuven [OT/14/072]
- Engineering and Science Physical Sciences Research Council (ESPRC) [EP/J015687/1]
- Province of West-Vlaanderen (Provincial Chair in Advanced Materials)
After successful cationization of cellulose nanocrystals (CNCs) to produce pyridinium-grafted-CNCs, a variety of different cationic CNCs were prepared using a similar procedure, thus unlocking access to a wide variety of cationized cellulose nanocrystals through a simple one-pot reaction. In this study, cationic CNCs were prepared through the use of 4-(1-bromoethyl)benzoic acid or 4-bromomethylbenzoic acid, p-toluenesulfonyl chloride, CNCs, and two different amines, 1-methylimidazole and 4-dimethylaminopyridine. The amines acted as both the base catalyst for the esterification and the nucleophile to form the cationic charge. This method offers a versatile and straightforward route to prepare a variety of different cationic nanocrystals and therefore tailor their interaction with their environment.
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