Concomitant degradation in periodate oxidation of carboxymethyl cellulose

Syntheses of new antimicrobial cellulose materials based 2-((2-aminoethyl)amino)-4-aryl-6-indolylnicotinonitriles

“…The dialdehyde oxidation of CMC was confirmed by IR that displayed a stretching vibrational band at 1738 cm -1 corresponds to the aldehydic carbonyl groups while the band at 889 cm-1 is assigned to the formation of the hemiacetal bond. This was consistent with the reported IR spectra for 2,3-DACMC [22,[29][30][31].…”

“…These results indicated that (1a-c) condensed effectively with 2,3-DACMC. The projection of the Schiff bases along the C=N axis resulted in an increase in the interchain distance, improving the organization of cellulose Schiff base [29][30][31].…”

“…It is known that, the periodate is a selective mild oxidizing agent that is usually used to oxidize the vicinal OH at C-2 and OH at C-3 in the AGU [29,30] of cellulose leading to ring opening, by breaking the bond between C-2 and C-3 to obtain the corresponding 2,3-dialdehyde derivative 2,3-DACMC (Scheme 2). Following the method described by E. Bordallo et al [22] The molar ratio of AGU: periodate was1:1.2 and the oxidation time was continued for 48h at 35 o C, (Scheme 2).…”

The effect of carboxymenthyl cellulose in PP fibers for dye absorption ability

“…The three parameters that control the various properties of CMC are as follows; molecular weight of the polymer, average number of carboxyl content per anhydroglucose unit, and the distribution of carboxylmethyl group substituents along the polymer chains [5][6][7] During the past few years, many researchers have paid considerable attention to the study of carboxymethyl cellulose due to this material is an important industrial polymer which give a wide range of applications such as drag reduction, detergents, textiles, paper, foods, adhesives, paints, pharmaceutics, and oil well drilling operation. [8][9][10][11][12][13][14][15] In textiles industrial, CMC is used in the printing paste as a thickener and a emulsifier which significantly improve the vividness of printing, and improve the stability of the color paste. [16] Polypropylene (PP) is one of the most widely used synthetic fibers in textile industry, which is cheaper and stronger than the other synthetic fibers.…”

Effect of Carboxymethyl Cellulose on the Mechanical and Barrier Properties of Sago Starch Based Films

“…One of the most important polysaccharides that are used in production of edible films is cellulose and its modified forms. Cellulose is the most accessible and frequent natural polymer that forms the most primitive structure of green plants [11,12]. Carboxymethyl cellulose (CMC) is water-soluble cellulose derivatives, and is used as a viscosity enhancer, condenser, water conservation agent, or used as a 2 of 7 bonding agent.…”