| Titre : |
Non isocyanate polyurethane using glycidyl acrylate monomers |
| Type de document : |
texte imprimé |
| Auteurs : |
Durgesh Kumar Soni, Auteur ; Arun Maithani, Auteur ; P. K. Kamani, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 56-61 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Chimie écologique
Copolymère acrylate de glycidyle
Copolymère styrène acrylate glycidyle méthacrylate
Cyclocarbonates
Dioxyde de carbone
Epoxydes
Polyaddition
Polyhydroxyuréthanes
Revêtements sans isocyanates
Stabilité hydrolytique
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Green Chemistry enables us to think beyond the con ventional materials synthesized for different applications. One such approach is the development of polyurethanes via an isocyanate free route. The chemistry is broadly based on the reaction of cyclocarbonate groups and primary diamines. The cyclocarbonate groups are synthesized bycarbonation of epoxy moieties. This opens a door for new possibilities of structure property variation in the Non Isocyanate PolyUrethanes (NIPU) and also leads to synthesis of hybrid acrylic PU and hybrid epoxy NIPU. The two monomers mainly discussed in this paper are Glycidyl acrylate and Glycidyl methacrylate which are synthesised by the reaction of epichlorohydrin with acrylic acid and methacrylic acid respectively. These monomers are then polymerized via free radical polymerization to produce glycidyl acrylate simultaneously reaction with carbon dioxide to synthesize a polymer having both epoxy groups and cyclocarbonate groups in the side chains. NIPU can also be synthesized from renewable resources also. NIPU has wide applications and can be replacement of conventional PUs in future. |
| Note de contenu : |
- Introduction : Problems in conventional PUs - Moisture-sensitivity - Inferior hydrolytic stability
- Glycidyl acrylate
- Polymerization of glycidyl acrylate and glycidyl methacrylate
- Carbonation of polymeric epoxides : radical polymerization f glycidyl acrylate alongwith CO2 fixation
- Ammonolysis of cyclic carbonate
- Renewable resource based
- Application of NIPU
|
| En ligne : |
https://drive.google.com/file/d/1IegKcVRRKb9Gy-gee12cU2d39K6CJ_eQ/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35235 |
in PAINTINDIA > Vol. LXXI, N° 2 (02/2021) . - p. 56-61
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