期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 27, 期 19, 页码 1670-1676出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.200600463
关键词
bacterial cellulose; biopolymers; homogenous reaction; ionic liquid; solvent; synthesis
Bacterial cellulose (BC), a unique type of cellulose, with high degree of polymerization of 6 500 could be dissolved easily in the ionic liquid 1-N-butyl-3-methylimidazolium chloride. For the first time, well-soluble BC acetates and carbanilates of high degree of substitution (up to a complete modification of all hydroxyl groups) were accessible under homogeneous and mild reaction conditions. Characterization of the new BC derivatives by NMR and FTIR spectroscopy shows an unexpected distribution of the acetyl moieties in the order O-6 > O-3 > O-2.
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