Ferric perchlorate hydrate as a new catalyst for highly efficient esterification of cellulose at room temperature
Abstract Ferric perchlorate was tested for the first time as a new catalyst to accelerate the esterification of microcrystalline cellulose (MCC) at room temperature in a less amount of acetic anhydride compared to the amount used in the conventional methods. It was possible to manufacture cellulose...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-04-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-09669-w |
| _version_ | 1819210009857228800 |
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| author | Safaa Ragab Ahmed Eleryan Ahmed El Nemr |
| author_facet | Safaa Ragab Ahmed Eleryan Ahmed El Nemr |
| author_sort | Safaa Ragab |
| collection | DOAJ |
| description | Abstract Ferric perchlorate was tested for the first time as a new catalyst to accelerate the esterification of microcrystalline cellulose (MCC) at room temperature in a less amount of acetic anhydride compared to the amount used in the conventional methods. It was possible to manufacture cellulose acetate (CA) with a high yield of up to 94%. The influence of changes in reaction time, catalyst amounts, and acetic anhydride on the characterization of cellulose acetate produced was investigated. The optimum condition for esterification of 2.0 g (12.34 mmol) MCC was found to be: 10 mL (105.98 mmol) AC2O, 200 mg (0.564 mmol, anhydrous basis) of Fe(ClO4)3·xH2O and 1 h reaction time at room temperature. The substitution degree of CA was investigated by FTIR and 1H-NMR spectroscopy. Thermal stability of CA was studied using TGA, DTA and DSC analyses. The degree of polymerization and the polydispersity index (PDI) were obtained using Gel permeation chromatography (GPC). This study verified the direct and efficient synthesis of di- and tri-cellulose acetate in one–pot reaction using Fe(ClO4)3·xH2O as a catalyst without using solvent. |
| first_indexed | 2024-12-23T06:04:22Z |
| format | Article |
| id | doaj.art-c2238dfadc8b409baa6b4c1dc7078822 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-23T06:04:22Z |
| publishDate | 2022-04-01 |
| publisher | Nature Portfolio |
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| spelling | doaj.art-c2238dfadc8b409baa6b4c1dc70788222022-12-21T17:57:36ZengNature PortfolioScientific Reports2045-23222022-04-0112111310.1038/s41598-022-09669-wFerric perchlorate hydrate as a new catalyst for highly efficient esterification of cellulose at room temperatureSafaa Ragab0Ahmed Eleryan1Ahmed El Nemr2National Institute of Oceanography and Fisheries, NIOFNational Institute of Oceanography and Fisheries, NIOFNational Institute of Oceanography and Fisheries, NIOFAbstract Ferric perchlorate was tested for the first time as a new catalyst to accelerate the esterification of microcrystalline cellulose (MCC) at room temperature in a less amount of acetic anhydride compared to the amount used in the conventional methods. It was possible to manufacture cellulose acetate (CA) with a high yield of up to 94%. The influence of changes in reaction time, catalyst amounts, and acetic anhydride on the characterization of cellulose acetate produced was investigated. The optimum condition for esterification of 2.0 g (12.34 mmol) MCC was found to be: 10 mL (105.98 mmol) AC2O, 200 mg (0.564 mmol, anhydrous basis) of Fe(ClO4)3·xH2O and 1 h reaction time at room temperature. The substitution degree of CA was investigated by FTIR and 1H-NMR spectroscopy. Thermal stability of CA was studied using TGA, DTA and DSC analyses. The degree of polymerization and the polydispersity index (PDI) were obtained using Gel permeation chromatography (GPC). This study verified the direct and efficient synthesis of di- and tri-cellulose acetate in one–pot reaction using Fe(ClO4)3·xH2O as a catalyst without using solvent.https://doi.org/10.1038/s41598-022-09669-w |
| spellingShingle | Safaa Ragab Ahmed Eleryan Ahmed El Nemr Ferric perchlorate hydrate as a new catalyst for highly efficient esterification of cellulose at room temperature Scientific Reports |
| title | Ferric perchlorate hydrate as a new catalyst for highly efficient esterification of cellulose at room temperature |
| title_full | Ferric perchlorate hydrate as a new catalyst for highly efficient esterification of cellulose at room temperature |
| title_fullStr | Ferric perchlorate hydrate as a new catalyst for highly efficient esterification of cellulose at room temperature |
| title_full_unstemmed | Ferric perchlorate hydrate as a new catalyst for highly efficient esterification of cellulose at room temperature |
| title_short | Ferric perchlorate hydrate as a new catalyst for highly efficient esterification of cellulose at room temperature |
| title_sort | ferric perchlorate hydrate as a new catalyst for highly efficient esterification of cellulose at room temperature |
| url | https://doi.org/10.1038/s41598-022-09669-w |
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