Acetylation of Microcrystalline Cellulose by Transesterification in AmimCl/DMSO Cosolvent System

Acetylation of Microcrystalline Cellulose by Transesterification in AmimCl/DMSO Cosolvent System.

Recently, IL/cosolvent systems have generated a lot of interest as cellulose-dissolving solvents and reaction media for various kinds of cellulose modification. In the present study, both 1-allyl-3-methylimidazolium chloride (AmimCl)/dimethyl sulfoxide (DMSO) and AmimCl/N,N-dimethylformamide (DMF) systems were employed to synthesize cellulose acetate by transesterification. Microcrystalline cel...

Silicified microcrystalline cellulose pdf

Cellulolytic Enzyme System of Thermoactinomyces sp. Grown on Microcrystalline Cellulose.

The carboxymethyl-cellulase and Avicelase activities of Thermoactinomyces sp., strain YX, were produced simultaneously with cell growth. Throughout the growth phase these activities were primarily extracellular, with up to 50% adsorbed to residual cellulosic substrate at any one time. On the other hand, the beta-glucosidase activity was associated with the culture solids throughout the entire f...

Antibacterial Modification of Microcrystalline Cellulose by Grafting Copolymerization

Microcrystalline cellulose (MCC) has the advantage of a high specific surface area as compared to that of conventional cellulose fibers. In this study the monomer methacrylamide (MAM) was used to treat MCC by grafting copolymerization. SEM, FTIR, and solid C NMR were used to characterize the morphology and composition of MAM-g-MCC. After the chlorination of MAM-g-MCC with 10% sodium hypochlorit...

Enthalpy of Combustion of Microcrystalline Cellulose

A test substance with characteristics and properties similar to those of cellulose· based solid waste products is needed to calibrate calorimeters and combustors which will be routinely burning these materials to determine their calorific values precisely for use in commerce. Microcrystalline cellulose was found to be a good calibrant for this purpose. The enthalpy of combustion of microcrystal...