Preparation and characterizations of triptycene integrated poly (arylene ether sulfone) based block and random copolymers

Murugaya, Kartigesan and Misdan, Nurasyikin and Awang, Nuha and Ling, How Hua and Madon, Rais Hanizam and Hairom, Nur Hanis Hayati and Razali, Nor Faizah and Yusof, Norhaniza and Jaafar, Juhana and Md Nordin, Nik Abdul Hadi and Ali, Fathilah (2024) Preparation and characterizations of triptycene integrated poly (arylene ether sulfone) based block and random copolymers. International Journal of Engineering Trends and Technology, 72 (2). pp. 133-141. ISSN 2231–5381

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Abstract

The present study aims to synthesize porous poly (arylene ether sulfone) (PAES) copolymers infused with triptycene monomer, prepared via two synthesis methods: block and random copolymerization. The morphologies and properties of both synthesized PAES copolymers were further studied and compared. Obtained results showed that all the procured triptycene monomers, oligomers, and PAES copolymers were successfully synthesized and verified through proton nuclear magnetic resonance (1HNMR) and Fourier-Transform Infrared Spectroscopy (FTIR) analyses. Gel Permeation Chromatography (GPC) showed that the obtained random PAES copolymer exhibited higher molecular weight than block PAES copolymer. At the same time, the thermogravimetric analysis demonstrated that the triptycene-integrated block PAES copolymer was slightly more thermally stable than the random PAES copolymer. After the membrane preparation, Field Emission Scanning Electron Microscopy (FESEM) and porosity studies documented that the block PAES copolymer membrane exhibited larger pore size with increased porosity compared to the random PAES copolymer membrane. The current study also found that both pore size and porosity could improve water uptake and the ion exchange capacity of the PEMs. The block PAES membrane also recorded superior proton conductivity compared to the random PAES copolymer membrane. The membrane procured in this study displayed workability in the PEMFC test at an operating temperature of 80°C and 60% RH. It is shown that the morphology and properties of the synthesized polymer varied when different synthesis methods were applied.

Item Type:	Article (Journal)
Uncontrolled Keywords:	Block copolymer, Random copolymer, Morphology, Triptycene, Poly (arylene ether sulfone).
Subjects:	T Technology > TP Chemical technology > TP1080 Polymers, plastics and their manufacture T Technology > TP Chemical technology > TP155 Chemical engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Biotechnology Engineering Kulliyyah of Engineering
Depositing User:	Dr Fathilah Ali
Date Deposited:	22 Mar 2024 14:59
Last Modified:	22 Mar 2024 14:59
URI:	http://irep.iium.edu.my/id/eprint/111533

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