| Titre : |
Synthesis and characterization of novel water-based poly(urethane-imide) nanodispersions |
| Type de document : |
texte imprimé |
| Auteurs : |
Baharak Pooladian, Auteur ; Mir Mohammad Alavi Nikje, Auteur |
| Année de publication : |
2018 |
| Article en page(s) : |
p. 643-647 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Chimie analytique
Copolymères en émulsion
Diisocyanate d'hexaméthylène
Dispersions et suspensions
Polyuréthane-imide
Polyuréthanes
Rhéologie
Taille des particules
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Poly(urethane-imide) nanodispersions were synthesized in four steps, as described below. In the first step, polyurethane prepolymer was prepared by the reaction of hexamethylene diisocyanate and polypropylene glycol in the presence of a catalytic amount of dibutyltin dilaurate. In the second step, poly(urethane-imide) prepolymer was prepared by the reaction of synthesized polyurethane prepolymer in the first step with pyromellitic dianhydride in dimethylformamide. In the third step, the prepared poly(urethane-imide) (PUI) reacted with 2,2-bis (hydroxymethyl) propionic acid, and the reaction completed in the last step which involved neutralization and dispersion in water, where acidic poly(urethane-imide) was neutralized by the addition of triethylamine. The prepared poly(urethane-imide) dispersions were characterized by fourier transform infrared spectrometry, proton nuclear magnetic resonance spectroscopy (1HNMR), thermogravimetric analysis, and dynamic laser scattering. A series of PUI dispersions with 30 wt% solid content, viscosities of 9 ± 1 cps, and particle sizes of 78–133 nm range were prepared and characterized. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Measurements - Synthesis of water-based poly(urethane-imide) nanodispersions
- RESULTS AND DISCUSSION : FTIR spectra analysis - HNMR analysis - TGA analysis - DLS analysis - Viscosity |
| DOI : |
10.1007/s11998-017-0047-6 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-018-0047-6.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30760 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 15, N° 3 (05/2018) . - p. 643-647
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Synthesis and characterization of novel water-based poly(urethane-imide) nanodispersions in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 3 (05/2018)
