[article]
| Titre : |
Synthesis of a novel ladder poly(azomethine-ester) based on PET waste bottles |
| Type de document : |
texte imprimé |
| Auteurs : |
Issam Ahmed Mohammed, Auteur ; S. Shahabuddin, Auteur ; H. S. Kareem, Auteur ; S. Mohamad, Auteur ; R. Saidur, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 296-306 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Bouteilles en matières plastiques -- Recyclage
Caractérisation
Polycondensation
Polyester d'azométhine
Polyéthylène téréphtalate
Polymères -- Analyse
Polymères -- Recyclage
Polymères -- Synthèse
Solutions de polymère
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
In the present investigation, a novel ladder polymer, poly(azomethine ester), was prepared via solution polycondensation polymerization between terephthalic acid and the novel monomer. Terephthalic acid was regenerated from PET waste bottles by saponification process, whereas p-phenylenediamine was obtained via Hoffmann rearrangement method. A novel monomer, namely N,N′-bis(2,5-dihydroxy benzylidene)-1,4-diaminobenzene was prepared from the reaction of 2,5-di-hydroxybenzadehyde with p-phenylenediamine in the ratio of 2:1, respectively. For the first time a solution polycondensation method has been employed for the synthesis of a ladder polymer which is otherwise prepared commonly via Diels-Alder cycloaddition reaction. The synthesized ladder polymer was characterized by Fourier transform infrared spectroscopy (FT-IR), proton nuclear magnetic resonance spectroscopy (1H NMR), carbon nuclear magnetic resonance spectroscopy (13C NMR), elemental analysis (CHN), X-ray diffraction (XRD), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The results revealed that the ladder polymer possess highly regular ladder like framework, and that most of the ester groups have taken part in the side-by-side polymerization reaction. |
| Note de contenu : |
- EXPERIMENTAL SECTION : Materials - Instrumentations and measurements - Synthesis of p-phenylenediamine - Preparation of terephthalic acid from PET bottles - Synthesis of N,N'-Bis(2,5-dihydroxy benzylidene)-1,4-diaminobenzene - Synthesis of ladder poly(azomethine ester)
- RESULTS AND DISCUSSION : Structural elucidation of p-phenylenediamine and terephthalic acid - Structural elucidation of monomer N,N'-bis(2,5-dihydroxy benzylidene)-1,4-diaminobenzene - Structural elucidation of the novel ladder poly(azomethine ester) - Properties of the ladder (poly(azomethine ester) |
| DOI : |
https://doi.org/10.3139/217.3595 |
| En ligne : |
https://drive.google.com/file/d/10wYVD5JvLDObHXe_GeMYjMZvvzS4tjy4/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32889 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXIV, N° 3 (07/2019) . - p. 296-306
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