Cover Image

Novel polyoxadiazoles with non-coplanar ortho-linked structures as highly CO2 permselective membranes

A novel class of polyoxadiazole membranes containing non-coplanar 1,1′-thiobis(2-naphthoxy) (S-BINOL) groups was synthesized using a versatile route and tested for CO2 separation. Dihydrazide monomer was obtained in a two-step high-yielding procedure and used in polycondensation reaction with tereph...

Full description

Saved in:
Bibliographic Details
Main Authors: Abouzari-Lotf, Ebrahim, Shockravi, Abbas, Rafieimanesh, A., Saremi, Masoumeh, avadi, Ali, Nasef, Mohamed Mahmoud
Format: Article
Language:English
Published: Royal Society of Chemistry 2014
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/54267/1/EbrahimAbouzari-Lotf2014_Novelpolyoxadiazoleswithnon-coplanar.pdf
http://eprints.utm.my/id/eprint/54267/
https://doi.org/10.1039/c4ra01595a
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.utm.54267
record_format eprints
spelling my.utm.542672018-08-03T08:50:52Z http://eprints.utm.my/id/eprint/54267/ Novel polyoxadiazoles with non-coplanar ortho-linked structures as highly CO2 permselective membranes Abouzari-Lotf, Ebrahim Shockravi, Abbas Rafieimanesh, A. Saremi, Masoumeh avadi, Ali Nasef, Mohamed Mahmoud TP Chemical technology A novel class of polyoxadiazole membranes containing non-coplanar 1,1′-thiobis(2-naphthoxy) (S-BINOL) groups was synthesized using a versatile route and tested for CO2 separation. Dihydrazide monomer was obtained in a two-step high-yielding procedure and used in polycondensation reaction with terephthaloyl chloride to prepare a polyhydrazide, which was converted into amorphous and soluble polyoxadiazoles having an inherent viscosity of around 1 dL g−1 by a simple thermal cyclization without using any solvent or in solvent cyclization. The ortho-linked sulfide groups of the obtained polymers were subsequently oxidized to yield sulfone-containing polymers. Polyoxadiazole membranes demonstrated comparable CO2 separation properties to those of imide based polymers and almost better performance than commercial and modified polyethersulfones, and the previously reported polyoxadiazoles. The sulfone-containing polyoxadiazole membranes exhibited higher permeability, lower selectivity, and enhanced plasticization pressure compared to the corresponding sulfide containing ones Royal Society of Chemistry 2014 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/54267/1/EbrahimAbouzari-Lotf2014_Novelpolyoxadiazoleswithnon-coplanar.pdf Abouzari-Lotf, Ebrahim and Shockravi, Abbas and Rafieimanesh, A. and Saremi, Masoumeh and avadi, Ali and Nasef, Mohamed Mahmoud (2014) Novel polyoxadiazoles with non-coplanar ortho-linked structures as highly CO2 permselective membranes. RSC Advances, 4 (35). pp. 17993-18002. ISSN 2046-2069 https://doi.org/10.1039/c4ra01595a DOI: 10.1039/c4ra01595a
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Abouzari-Lotf, Ebrahim
Shockravi, Abbas
Rafieimanesh, A.
Saremi, Masoumeh
avadi, Ali
Nasef, Mohamed Mahmoud
Novel polyoxadiazoles with non-coplanar ortho-linked structures as highly CO2 permselective membranes
description A novel class of polyoxadiazole membranes containing non-coplanar 1,1′-thiobis(2-naphthoxy) (S-BINOL) groups was synthesized using a versatile route and tested for CO2 separation. Dihydrazide monomer was obtained in a two-step high-yielding procedure and used in polycondensation reaction with terephthaloyl chloride to prepare a polyhydrazide, which was converted into amorphous and soluble polyoxadiazoles having an inherent viscosity of around 1 dL g−1 by a simple thermal cyclization without using any solvent or in solvent cyclization. The ortho-linked sulfide groups of the obtained polymers were subsequently oxidized to yield sulfone-containing polymers. Polyoxadiazole membranes demonstrated comparable CO2 separation properties to those of imide based polymers and almost better performance than commercial and modified polyethersulfones, and the previously reported polyoxadiazoles. The sulfone-containing polyoxadiazole membranes exhibited higher permeability, lower selectivity, and enhanced plasticization pressure compared to the corresponding sulfide containing ones
format Article
author Abouzari-Lotf, Ebrahim
Shockravi, Abbas
Rafieimanesh, A.
Saremi, Masoumeh
avadi, Ali
Nasef, Mohamed Mahmoud
author_facet Abouzari-Lotf, Ebrahim
Shockravi, Abbas
Rafieimanesh, A.
Saremi, Masoumeh
avadi, Ali
Nasef, Mohamed Mahmoud
author_sort Abouzari-Lotf, Ebrahim
title Novel polyoxadiazoles with non-coplanar ortho-linked structures as highly CO2 permselective membranes
title_short Novel polyoxadiazoles with non-coplanar ortho-linked structures as highly CO2 permselective membranes
title_full Novel polyoxadiazoles with non-coplanar ortho-linked structures as highly CO2 permselective membranes
title_fullStr Novel polyoxadiazoles with non-coplanar ortho-linked structures as highly CO2 permselective membranes
title_full_unstemmed Novel polyoxadiazoles with non-coplanar ortho-linked structures as highly CO2 permselective membranes
title_sort novel polyoxadiazoles with non-coplanar ortho-linked structures as highly co2 permselective membranes
publisher Royal Society of Chemistry
publishDate 2014
url http://eprints.utm.my/id/eprint/54267/1/EbrahimAbouzari-Lotf2014_Novelpolyoxadiazoleswithnon-coplanar.pdf
http://eprints.utm.my/id/eprint/54267/
https://doi.org/10.1039/c4ra01595a
_version_ 1643653506335244288
score 13.211869

Similar Items