Synthesis of a Novel Ladder Poly(azomethine-ester) Based on PET Waste Bottles

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...

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Main Authors: Issam, A. Mohammed, Shahabuddin, Syed, Kareem, Huda Salah, Mohamad, Sharifah, Saidur, Rahman
Format: Article
Published: Carl Hanser Verlag 2019
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author Issam, A. Mohammed
Shahabuddin, Syed
Kareem, Huda Salah
Mohamad, Sharifah
Saidur, Rahman
author_facet Issam, A. Mohammed
Shahabuddin, Syed
Kareem, Huda Salah
Mohamad, Sharifah
Saidur, Rahman
author_sort Issam, A. Mohammed
collection UM
description 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-Al-der 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. © Carl Hanser Verlag, Munich Intern.
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spelling um.eprints-241012020-03-26T04:38:28Z http://eprints.um.edu.my/24101/ Synthesis of a Novel Ladder Poly(azomethine-ester) Based on PET Waste Bottles Issam, A. Mohammed Shahabuddin, Syed Kareem, Huda Salah Mohamad, Sharifah Saidur, Rahman Q Science (General) QD Chemistry 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-Al-der 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. © Carl Hanser Verlag, Munich Intern. Carl Hanser Verlag 2019 Article PeerReviewed Issam, A. Mohammed and Shahabuddin, Syed and Kareem, Huda Salah and Mohamad, Sharifah and Saidur, Rahman (2019) Synthesis of a Novel Ladder Poly(azomethine-ester) Based on PET Waste Bottles. International Polymer Processing, 34 (3). pp. 296-306. ISSN 0930-777X, DOI https://doi.org/10.3139/217.3595 <https://doi.org/10.3139/217.3595>. https://doi.org/10.3139/217.3595 doi:10.3139/217.3595
spellingShingle Q Science (General)
QD Chemistry
Issam, A. Mohammed
Shahabuddin, Syed
Kareem, Huda Salah
Mohamad, Sharifah
Saidur, Rahman
Synthesis of a Novel Ladder Poly(azomethine-ester) Based on PET Waste Bottles
title Synthesis of a Novel Ladder Poly(azomethine-ester) Based on PET Waste Bottles
title_full Synthesis of a Novel Ladder Poly(azomethine-ester) Based on PET Waste Bottles
title_fullStr Synthesis of a Novel Ladder Poly(azomethine-ester) Based on PET Waste Bottles
title_full_unstemmed Synthesis of a Novel Ladder Poly(azomethine-ester) Based on PET Waste Bottles
title_short Synthesis of a Novel Ladder Poly(azomethine-ester) Based on PET Waste Bottles
title_sort synthesis of a novel ladder poly azomethine ester based on pet waste bottles
topic Q Science (General)
QD Chemistry
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