| Titre : |
Study of the synthesis of sulfonated and succinated lanolin acid fatliquoring agent |
| Type de document : |
texte imprimé |
| Auteurs : |
Haojie Qin, Auteur ; Guoping Qian, Auteur ; Jianghao Wu, Auteur ; Xiaojun Shen, Auteur |
| Année de publication : |
2024 |
| Article en page(s) : |
p. 51-56 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Amidation
Anhydride maléique
Composés organiques -- Synthèse
Diéthanolamine
Esterification
Huiles et graisses synthétiques
Lanoline
Succination
sulfite de sodium
Sulfonation
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The sulfonated and succinated lanolin acid fatliquoring agent was prepared from lanolin acid by amidation with diethanolamine, monoesterification with maleic anhydride and sulfonation with anhydrous sodium sulfite. Through single factor experiments, the optimised synthesis conditions were determined as follows: the temperature of amidation reaction was 135°C and the reaction time was 5 hours, the amidation yield could reach 94.4 %. In the monoesterification reaction, the molar ratio of maleic anhydride to theoretical hydroxyl groups of the system was 1:1.1, the reaction temperature was 95°C and the reaction time was 2 hours, and the esterification rate could reach 86.1%. In the sulfonation reaction, the molar ratio of maleic anhydride to sodium sulfite was 1:1.05, the reaction temperature was 80°C and the reaction time was 3 hours. Under the optimised conditions, the yield of product could reach 94.9 %, and the structures were characterised by FTIR spectrum. |
| Note de contenu : |
- MATERIALS AND METHODS : Materials - Experimental methods - Analytical methods
- RESULTS AND DISCUSSION : Effect of reaction temperature and time on - Effect of reaction temperature and time on monoesterification amidation - Effect of molar ratio on monoesterification - Effect of reaction temperature and time on sulfonation - Effect of molar ratio on sulfonation - FTIR analysis
- Table 1 : Effect of reaction temperature on the proportion of acylation reaction products
|
| En ligne : |
https://drive.google.com/file/d/1LjuD_diJIOs7QJWzVqBz0Z0iiSKXv0lE/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40931 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 108, N° 2 (03-04/2024) . - p. 51-56
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Study of the synthesis of sulfonated and succinated lanolin acid fatliquoring agent in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 108, N° 2 (03-04/2024)
