title: Homogeneous preparation of cellulose acetate propionate (CAP) and cellulose acetate butyrate (CAB) from sugarcane bagasse cellulose in ionic liquid.
abstract: 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 (13)C 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.
authors: School of Materials Science and Engineering, Beijing University of Technology, Beijing, China.
authors: Kelin
authors: K
authors: Huang
authors: Ben
authors: B
authors: Wang
authors: Yan
authors: Y
authors: Cao
authors: Huiquan
authors: H
authors: Li
authors: Jinshu
authors: J
authors: Wang
authors: Weijiang
authors: W
authors: Lin
authors: Chaoshi
authors: C
authors: Mu
authors: Dankui
authors: D
authors: Liao
mesh_terms: D002482:Cellulose / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000737:chemistry; D004355:Drug Stability; D007220:Industrial Waste; D052578:Ionic Liquids / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D059027:Recycling; D031786:Saccharum / Q000737:chemistry; D013696:Temperature
chemical_list: D007220:Industrial Waste; D052578:Ionic Liquids; D002482:Cellulose; C014396:cellulose acetate-butyrate; C073473:cellulose acetate propionate; C027433:bagasse