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Optimizing the reaction parameters for synthesizing carboxymethyl cellulose from Hyphaene thebaica (Doum palm) leaves

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Title Optimizing the reaction parameters for synthesizing carboxymethyl cellulose from Hyphaene thebaica (Doum palm) leaves
 
Creator Ahmed, Abdalwahab
Ismail, Essa Mohammed Ahmed
 
Subject Hyphaene thebaica
Cellulose
CMC
 
Description 181-189
The current investigation focuses on optimizing reaction conditions for preparing carboxymethyl cellulose (CMC) using a new source Hyphaene thebaica leaves. The CMC produced under optimal conditions has been subsequently characterized by 1H NMR, FTIR and TGA techniques. Various solvent mixtures, including a combination of ethanol and isopropanol have been employed in the study. Additionally, different temperatures, reaction durations, and quantities of monochloroacetic acid (MCAA) have been utilized. The highest degree of substitution (DS) has been found to be 1.16. This result has been achieved by reacting MCAA with cellulose at a molecular ratio of 1:4.5 for 3 hours at 65°C using a solvent combination of (1:1). The produced CMC has an exceptionally unique physical characteristic creamy color and solubility (92%). The presence of a carbonyl group absorption signal in FTIR at 1734 cm–1 indicates the production of CMC. In addition, the application of thermogravimetric analysis (TGA) demonstrates that carboxymethyl cellulose exhibits lower thermal stability in comparison to native cellulose.
 
Date 2024-02-21T07:26:45Z
2024-02-21T07:26:45Z
2024-02
 
Type Article
 
Identifier 2583-1321 (Online); 0019-5103 (Print)
http://nopr.niscpr.res.in/handle/123456789/63373
https://doi.org/10.56042/ijc.v63i2.5172
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJC Vol.63(02) [Feb 2024]