Fahim, Hoda and Motamedzadegan, Ali and Farahmandfar, Reza and Ghaffari Khaligh, Nader (2023) A comparative study of the surface modification of cellulose using glutaric anhydride and succinic anhydride through a greener technique. Cellulose, 30 (14). pp. 8789-8803. ISSN 0969-0239, DOI https://doi.org/10.1007/s10570-023-05405-3.
Full text not available from this repository.Abstract
The comparison of glutaric anhydride (GA) and succinic anhydride (SA) and reaction time on the surface modification of microfibrillated cellulose under a green and solvent-free technique were investigated. The degree of substitution (DS) and FTIR results showed that both anhydrides could successfully introduce carboxylate functional groups on the cellulose surface. The DS for GA and SA was 1.5 & PLUSMN; 0.2 and 3.5 & PLUSMN; 0.2 mmol of carboxylic acid/g of cellulose, respectively. The zeta potential results confirmed increasing surface charge from - 10.9 & PLUSMN; 0.6 to - 23.03 & PLUSMN; 1.7 mV for modified celluloses with GA and SA, respectively. Analysis of morphology by SEM showed all samples had fibrous structures; however, a decrease in fiber length was observed after modification. DSC results showed that carboxylation of cellulose using GA and SA caused different heat of evaporations and the onset temperature of exothermic peaks and their apex moved to lower temperatures while no significant changes in the phase transition profiles were observed. The current findings demonstrated that GA could be used as a safer and greener alternative to SA for the carboxylation of cellulose through a solvent-free and catalyst-free process.
| Item Type: | Article |
|---|---|
| Funders: | Iran National Science Foundation [Grant no. INSF] |
| Uncontrolled Keywords: | Catalyst-free process; Cellulose carboxylation; Green synthesis; Solvent-free process |
| Subjects: | Q Science > Q Science (General) T Technology > T Technology (General) |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 11 Oct 2025 13:07 |
| Last Modified: | 11 Oct 2025 13:07 |
| URI: | http://eprints.um.edu.my/id/eprint/48172 |
Actions (login required)
 |
View Item |
