| 초록 |
Cellulose derivative is directly synthesized from wood ionic liquids solution. 1-Butyl, 3-methylimidazolium ionic liquid ([Bmim][OAc]) is found as a good solvent for completely dissolving wood, and 1, 3-dimethylimidazolium methyl phosphite ionic liquid ([Dmim][(MeO)(H)PO2]) is found as a phosphorylating agent to react with cellulose to form a imidazolium-containing phosphorylated cellulose product. FT-IR, Elemental Analysis and 13C-NMR experiments demonstrated that the presence of phosphorous-containing group located on the cellulose chain in the separated wood. SEM and XRD analyses revealed that the crystallinity of raw wood was changed from cellulose I-crystalline phase to amorphous phase in the phosphoryated sample.The phosphorylated wood is cellulose-rich material, containing a small amount of lignin. The advantages of this product are good water-solubility and good flame-retardant property which might open potential applications in biochemical processes. |
