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Efficient homogeneous chemical modification of bacterial cellulose in the ionic liquid 1-N-butyl-3-methylimidazolium chloride
被引:161
作者:
Schlufter, Kerstin
Schmauder, Hans-Peter
Dorn, Susann
Heinze, Thomas
机构:
[1] Univ Jena, Kompetenzzentrum Polysaccharidforsch, D-07743 Jena, Germany
[2] Forschungszentrum Med Tech & Biotechnol EV, D-99947 Bad Langensalza, Germany
关键词:
bacterial cellulose;
biopolymers;
homogenous reaction;
ionic liquid;
solvent;
synthesis;
D O I:
10.1002/marc.200600463
中图分类号:
O63 [高分子化学(高聚物)];
学科分类号:
070305 ;
080501 ;
081704 ;
摘要:
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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页码:1670 / 1676
页数:7
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