Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 59, Issue 10, Pages 5376-5381Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jf104881f
Keywords
AmimCl ionic liquid; sugarcane bagasse cellulose; cellulose acetate butyrate; cellulose acetate propionate; recycling
Funding
- Guangxi Natural Science Foundation [0991024Z]
- Guangxi Key Laboratory of Biorefinery [10-046-06]
- Ministry of Science and Technology [2009CB219901]
- National Science Foundation of China [21006118]
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Cellulose acetate butyrate (CAB) and cellulose acetate propionate (CAP) were prepared homogeneously in a 1-allyl-3-methylimidazolium chloride (AmimCl) ionic liquid system from sugarcane bagasse (SB). The reaction temperature, reaction time, and molar ratio of butyric (propionic) anhydride/anhydroglucose units in the cellulose affect the butyryl (B) or propionyl (P) content of CAB or CAP samples. The C-13 NMR data revealed the distribution of the substituents of CAB and CAP. The thermal stability of sugar cane bagasse cellulose was found by thermogravimetric analysis to have decreased after chemical modification. After reaction, the ionic liquid was effectively recycled and reused. This study provides a new way for high-value-added utilization of SB and realizing the objective of turning waste into wealth.
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