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Autor:
Jinfeng Li, Jisheng Yang
Publikováno v:
Carbohydrate Polymers. 220:126-131
An amphiphilic polymer, carboxymethyl cellulose-laurate (CMC-C12), was synthesized by esterification of water-soluble carboxymethyl cellulose (CMC) and hydrophobic lauroyl chloride. Folate, a cancer-cell-specific ligand, was conjugated to CMC-C12 to
Publikováno v:
Carbohydrate Polymers. 211:1-10
In general, chitosan should be dissolved in strong acidic media (such as acetic acid) before it could be applied as hydrogels. However, it was found that chitosan could also be dissolved in the ferric solution to form ferric-chitosan complex via coor
Publikováno v:
Carbohydrate Polymers. 212:289-296
Degradation of cellulose to reducing sugar is the key step for the conversion of cellulose to valuable chemicals. Cellulose was degraded by WCl6 in 1-butyl-3-methyl imidazole chloride at 80 °C and lower. 83% and 85.5% yield of total reducing sugar w
Autor:
Jingjing Zhang, Qing Li, Chunqing Lei, Fang Dong, Lijie Wei, Yingqi Mi, Zhanyong Guo, Yuan Chen
Publikováno v:
Carbohydrate Polymers. 206:493-503
In this paper, a series of 6-O-imidazole-based quaternary ammonium chitosan derivatives via 6-O-chloroacetyl chitosan (CAClC) were successfully designed and synthesized. Detailed structural characterization was carried out by means of FT-IR and 1H NM
Publikováno v:
Carbohydrate Polymers. 200:567-571
Based on the fact that an ionic liquid, 1-allyl-3-methylimidazolium bromide (AMIMBr), efficiently dissolved α-chitin, this study investigated the development of facile acylation reactions of α-chitin in AMIMBr media. Under optimal conditions in the
Publikováno v:
Carbohydrate Polymers. 195:413-419
An acidic ionic liquid (IL), i.e. 1-(carboxymethyl)pyridinium chloride, is synthesized and investigated for its untapped potential to dissolve cellulose, chitosan and chitin with concentrations of up to 11, 10 and 5 wt.%, respectively. Interestingly,
Publikováno v:
Carbohydrate polymers. 251
New amphiphilic derivatives of kappa-carrageenan (KC) were synthesized by hydrophobic modification with octyl chloride. Two different methods based on microwave and conventional heating were used. All KC derivatives (KCRs) were characterized by diffe
Publikováno v:
Carbohydrate polymers. 246
The purpose of this study was to investigate the improvement in the hydrophobicity of cellulose through gas grafting treatment with long chain fatty acid chloride using high pressure during pressing at high temperature. To do this, the gas grafting t
Autor:
Vicente Espinosa-Solis, Everth Jimena Leal-Castañeda, Víctor Barrera-Figueroa, Yunia Verónica García-Tejeda
Publikováno v:
Carbohydrate Polymers. 194:177-183
The effect of esterification on hydrolyzed rice starch was analyzed, for this aim rice starch was hydrolyzed and subsequently esterified with lauroyl chloride at three modification levels. Starch derivatives were characterized regarding their degree
Publikováno v:
Carbohydrate polymers. 235
All-cellulose composites (ACC) were effectively prepared by a low energy consumption strategy. The ionic liquid of 1-butyl-3-methylimidazolium chloride (BMIMCl) was used to immerse hemp fabric before hot-pressing process at a relative low temperature