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In relation to this article, we declare that there is no conflict of interest.
Publication history
Received August 5, 2024
Accepted November 10, 2024
Available online January 25, 2025
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Enhancing Thermal Stability with Cellulose Derivative: A Study on Porosity and Molecular Interactions

Department of Chemical Engineering and Materials Science , Sangmyung University 1Department of Chemistry and Energy Engineering , Sangmyung University
Korean Journal of Chemical Engineering, January 2025, 42(1), 133-142(10)
https://doi.org/10.1007/s11814-024-00338-4

Abstract

In the present investigation, advanced porous membranes were fabricated utilizing a cellulose derivative (CD) characterized

by a molecular weight of 380,000, renowned for its thermal stability and mechanical fortitude. A vacuum-assisted technique

facilitated the production of membranes endowed with vertically oriented, interconnected channels. Under a regimen of

1 bar pressure within an N 2 atmosphere, the membranes demonstrated specifi c Gurley values and porosities, illustrating the

capability to modulate physical properties through alterations in the CD to glycerin ratios, notably 1:0.9 and 1:1.1. TGA

highlighted CD’s elevated melting point and thermal resilience, with glycerin incorporation serving to augment thermal

stability, albeit the induction of pores subsequent to the vacuum process slightly attenuated this attribute. SEM analysis

substantiated the precise engineering of vertically aligned channels and pores, validating the effi cacy of the production

methodology. Flux measurement investigations indicated that an increase in glycerin concentration resulted in diminished

curvature of the internal channels and an enhanced density of surface pores. FT-IR spectroscopy analyses shed light on

the molecular interactions, revealing the infl uence of glycerin on the energy absorption of the O–H bond within CD, thus

fortifying intermolecular bonds. This impact was consistent in samples both before and after the vacuum treatment, indicative

of chemical modifi cations attributed to glycerin addition, particularly manifested in the peak shift around 1050 cm −1 .

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