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Polymer Bulletin
Erschienen in: Polymer Bulletin 9/2019

13.11.2018 | Original Paper

Synthesis, characterization and rheological properties of epoxy monomers derived from bifunctional aromatic amines

verfasst von: Omar Dagdag, Azzouz Essamri, Lahoucine El Gana, Mehdi El Bouchti, Othman Hamed, Omar Cherkaoui, Shehdeh Jodeh, Ahmed El Harfi

Erschienen in: Polymer Bulletin | Ausgabe 9/2019

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Abstract

Several new epoxy monomers were synthesized from glycidylation of functional aromatic amines containing hydroxyl or thiol groups. The epoxy monomers were triglycidyl-2-aminophenol, triglycidyl-2-aminothiophenol, tetraglycidyl-1,2-phenylenediamine and tetraglycidyl-4-methyl-1,2-phenylenediamine. The characterization of the epoxy monomers was carried out by FTIR and 1H NMR spectroscopy. Rheological properties of solutions of the epoxy monomers in ethanol were evaluated using an advanced rheometer. The effect of solution concentration and temperature on the viscosity of the epoxy solution was evaluated. The shear rheology study at various temperatures of the epoxy resins solutions in ethanol was carried out on solutions with concentrations ranges form 0.5 to 5 wt% and temperatures (20–70 °C). The results revealed that the tetra-functional epoxy resins behave as Newtonian liquids and its viscosity is independent on the shear rate. However, the solutions of tri-functional epoxy resins are non-Newtonian liquids, and their viscosities are shear rate dependent. The activation energy of the epoxy monomers was calculated from the Arrhenius equation using solution with concentrations ranges of 0.5–5 wt%.
Vorheriger Artikel Ornidazole-loaded polyethylene glycol-based micron-level particles: influence of eutectic liquid on reservoir-type particle formation, drug entrapment efficiency and drug dissolution or release behavior
Nächster Artikel Effect of the preparation method in the size of chitosan nanoparticles for the removal of allura red dye

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Metadaten
Titel
Synthesis, characterization and rheological properties of epoxy monomers derived from bifunctional aromatic amines
verfasst von
Omar Dagdag
Azzouz Essamri
Lahoucine El Gana
Mehdi El Bouchti
Othman Hamed
Omar Cherkaoui
Shehdeh Jodeh
Ahmed El Harfi
Publikationsdatum
13.11.2018
Verlag
Springer Berlin Heidelberg
Erschienen in
Polymer Bulletin / Ausgabe 9/2019
Print ISSN: 0170-0839
Elektronische ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-018-2607-4

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