Comparative study of succinoylation of cellulose with or without catalysts in ionic liquids
Derivatization of cellulose in 1-butyl-3-methylimidazolium chloride ionic liquid with succinie anhydride was investigated and the potential of novel catalysts including N-bromosuccinimide (NBS), 4-dimethylamino pyridine (DMAP) and iodine for succionylation in IL was also studied. The results showed that succinoylation of cellulose was successfully carried out in IL without any catalysts, and cellulose derivatives with low DS in the range of 0.04 to 0.52 obtained. Compared with the cellulose preparations succinylated without any catalysts, the DS of cellulose succinylated with DMAP, NBS and iodine significantly increased. NBS was found to be more effective than DMAP and iodine. The characterization of succinylated cellulose was performed by Fourier transform infrared (FT-IR) and solid-state CP/MAS 13C nuclear magnetic resonance (NMR) spectroscopies, and more evidences of succinoylation and catalysis were provided. The results also indicated that the reaction of hydroxyl groups at C-6, C-2 and C-3 positions in cellulose all occurred.
Cellulose Ionic liquid Derivatization Succinic anhydride Catalyst
Chuan-fu LIU Ai-ping ZHANG Wei-ying LI Feng-xia YUE Run-cang SUN
State Key Laboratory of Pulp and Paper Engineering,south china university of technology,Guangzhou 51 State Key Laboratory of Pulp and Paper Engineering,south china university of technology,Guangzhou 51
国际会议
广州
英文
1492-1498
2008-12-03（万方平台首次上网日期，不代表论文的发表时间）