## Abstract The chemical modification of native wheat straw hemicelluloses with succinic anhydride using __N,N__βdimethylformamide/lithium chloride system as solvent and pyridine and/or 4βdimethyaminopyridine as catalyst has been examined. In particular, the progress of the succinoylation reaction
Acetylation of wheat straw hemicelluloses in N,N-dimethylacetamide/LiCl solvent system
β Scribed by RunCang Sun; J.M Fang; J Tomkinson; G.L Jones
- Book ID
- 114301578
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 189 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0926-6690
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π SIMILAR VOLUMES
The esterified hemicelluloses were prepared under homogeneous reaction conditions in the system N,N -dimethylformamide/lithium chloride by reacting the native hemicelluloses with various acyl chlorides (C 3 -C 18 ) in the presence of 4-dimethylaminopyridine as a catalyst and triethylamine as a base
Rate constants and activation parameters for decrystallization of Avicel PH-101 cellulose, and bagasse-based cellulose in presence of LiCl/N,N-dimethylacetamide solvent system have been determined from dependence of the index of crystallinity of cellulose, Ic, on time, under nonisothermal conditions