Esterification optimization of cellulose with p-Iodobenzoyl chloride using experimental design method
| Autor: | Amine Es-said, Rahma Bchitou, Mohammed El Moussaouiti, Lahcen El Hamdaoui |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Polymers and Plastics Chemical structure Organic Chemistry 02 engineering and technology Nuclear magnetic resonance spectroscopy 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Chloride 0104 chemical sciences law.invention chemistry.chemical_compound chemistry Magazine law Ionic liquid Materials Chemistry medicine Response surface methodology Cellulose 0210 nano-technology Kraft paper Nuclear chemistry medicine.drug |
| Zdroj: | Journal of Polymer Research. 26 |
| ISSN: | 1572-8935 1022-9760 |
| DOI: | 10.1007/s10965-019-1862-x |
| Popis: | The synthesis and characterization of kraft cellulose p-iodobenzoate is presented in this paper. The ionic liquid 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) as a reaction medium for the synthesis of cellulose p-iodobenzoate by homogeneous esterification of dissolved kraft cellulose with p-iodobenzoyl chloride. The degree of substitution (DS) of cellulose ester was calculated from the 1H-NMR spectra. In first time, the chemical structure and properties of the obtained products were characterized by FT-IR and NMR spectroscopy. Cellulose p-Iodobenzoates ester with a DS in the range from about 0.18 to 2.05 were accessible under mild conditions. The DS of cellulose ester increased with the increase of the molar ratio of iodobenzoyl chloride/anhydroglucose unit in cellulose, reaction time, and reaction temperature. In second time, the Response Surface Methodology (RSM) that was based on a Box-Behnken design was used for optimize the esterification of cellulose. The effects of three parameters were investigated: (X1) number of mole of reactant, (X2) reaction temperature, and (X3) reaction time. The Analysis of variance (ANOVA) indicated that linear terms of (X1), (X2), (X3), the quadratic term of (X12) and (X32) have a significant effect (p |
| Databáze: | OpenAIRE |
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