| Titre : |
Effect of pendant functional groups on curing kinetics and final properties of cardanol-based benzoxazines |
| Type de document : |
texte imprimé |
| Auteurs : |
Kunal Wazarkar, Auteur ; Anagha Sabnis, Auteur |
| Année de publication : |
2018 |
| Article en page(s) : |
p. 555-569 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Analyse spectrale
Analyse thermique
Benzoxazine
Cardanol
Cinétique chimique
Composés organiques -- Synthèse
Polymérisation
Revêtements
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The present study reveals the effect of pendant functional groups on curing and final properties of cardanol-derived benzoxazines. Three benzoxazines are synthesized by choosing three functional amines, namely aniline, 4-aminophenol, and 4-aminobenzoic acid. The structure of the benzoxazines is confirmed by chemical as well as spectroscopic analysis. Curing kinetics of benzoxazines is studied using nonisothermal differential scanning calorimetry (DSC) at four different heating rates: 5, 10, 15, and 20 degrees per minute. Further, kinetic models of Kissinger and Flynn–Wall–Ozawa are applied to determine the kinetic parameters of the curing reaction. Curing kinetics and modeling studies reveal that benzoxazine containing phenolic OH requires lower energy of activation for curing as compared to carboxyl functional benzoxazine and neat benzoxazine. Moreover, coatings are applied on mild steel (MS) panels and evaluated for mechanical, chemical, and thermal properties. |
| Note de contenu : |
- MATERIALS
- EXPERIMENTAL : Synthesis of benzoxazines - Panel preparation - Coating application
- INSTRUMENTATION
- CHARACTERIZATION
- RESULTS AND DISCUSSIONS : FTIR spectroscopy - H-NMR spectroscopy - Gel permeation chromatography - Curing kinetics by nonisothermal DSC analysis - Mechanism of curing - Coating properties |
| DOI : |
10.1007/s11998-017-0020-9 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-017-0020-9.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30752 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 3 (05/2018) . - p. 555-569
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Effect of pendant functional groups on curing kinetics and final properties of cardanol-based benzoxazines in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 3 (05/2018)
