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A new sustainable synthetic method for cellulose acetate was developed by a combination of I-catalyzed solid-liquid acetylation of cellulose and a milling process reducing the crystallinity of cellulose within a few seconds. Milled low-crystalline cellulose was acetylated faster than the original cellulose with higher crystallinity. The plausible factors of acceleration were the conversion of the hydroxy group in hydrogen bonds into reactive ones and the efficient formation of the catalytic species I by the enhanced formation of I assisted by the amorphous domain of the milled cellulose, while the morphological and structural changes were ignorable.
This article was published in the following journal.
Name: ACS omega
Oxidation of cellulose with periodate under aqueous conditions yields dialdehyde cellulose, a promising functional cellulose derivative. Main obstacles of this oxidation have been its slow kinetics an...
Crystalline cellulose is a common inactive pharmaceutical additive. If this material can also be used to construct beads for the wet milling of pharmaceutical compounds, it could possibly address issu...
Controlling interactions between cellulose-based materials and membranes of living cells is critical in medicine and biotechnology in, for example, wound dressing, tissue engineering, haemodialysis me...
Thermoplastic "all-cellulose" composites were synthesized by covalent functionalization of cellulose acetate (CA) with oxidized carbonized cellulose (OCC). The OCC were manufactured via microwave-assi...
Cardiac troponin I (cTnI) is an essential physiological and pathological regulator of cardiac relaxation. Significant to this regulation, the post-translational modification of cTnI through phosphoryl...
This is a randomized triple-blind clinical trial to evaluate the behavior of peri-implant tissues (bone and soft tissues) in BLX implants loaded early or delayed and with different surgica...
This is a Phase 3, multi-center, randomized, placebo-controlled trial to determine the effectiveness and safety of the 6% cellulose sulfate (CS) vaginal gel for the prevention of HIV infec...
The molecular nature of insulin resistance in human muscle is still incompletely defined. Our data indicate that acetylation of mitochondrial proteins in humans is regulated by muscle cont...
The purpose of this study was to compare the acute effects of 5g of Cassia cinnamon, 50 minutes of endurance exercise performed at 70% of the heart rate reserve (correlated to VO2max), and...
Flour milling is from the oldest trade industry. Several problems arise during functioning and maintenance operations. Production process involves the breakdown of grains to separate their...
A nonspecific term used to describe transient alterations or loss of consciousness following closed head injuries. The duration of UNCONSCIOUSNESS generally lasts a few seconds, but may persist for several hours. Concussions may be classified as mild, intermediate, and severe. Prolonged periods of unconsciousness (often defined as greater than 6 hours in duration) may be referred to as post-traumatic coma (COMA, POST-HEAD INJURY). (From Rowland, Merritt's Textbook of Neurology, 9th ed, p418)
Temporary storage of information for a few seconds to hours, as opposed to long-term memory which refers to material stored for days, years, or a lifetime.
A type of ion exchange chromatography using diethylaminoethyl cellulose (DEAE-CELLULOSE) as a positively charged resin. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Cellulose derivative used in chromatography, as ion-exchange material, and for various industrial applications.
A cellulose of varied carboxyl content retaining the fibrous structure. It is used as a local hemostatic and as a matrix for normal blood coagulation.