Porous polyoxadiazole membranes for harsh environment

Husnul Maab; Suzana Pereira Nunes

doi:10.1016/j.memsci.2013.05.038

Porous polyoxadiazole membranes for harsh environment

Husnul Maab, Suzana Pereira Nunes

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

A series of polyoxadiazoles with exceptionally high stability at temperatures as high as 370°C and in oxidative medium has been synthesized by polycondensation and manufactured into porous membranes by phase inversion. The membranes were characterized by thermal analysis (TGA), chemical stability was measured by immersion test, oxidative stability by Fenton's test, pore diameter by porosimetry and the morphology by FESEM. The polymers are soluble only in sulfuric acid and are stable in organic solvents like NMP, THF and isopropanol. The membranes selectivity was confirmed by separation of polystyrene standards with different molecular weights. Most membranes were characterized as having a cut-off of 60,000. g/mol. Being stable under harsh environments, the membranes have incomparable characteristics with perspectives of application in chemical and pharmaceutical industry, catalytic reactors, in combination with oxidative processes and other applications so far envisioned only for ceramic membranes. © 2013.

Original language	English (US)
Pages (from-to)	127-134
Number of pages	8
Journal	Journal of Membrane Science
Volume	445
DOIs	https://doi.org/10.1016/j.memsci.2013.05.038
State	Published - Oct 2013

ASJC Scopus subject areas

Biochemistry
Filtration and Separation
General Materials Science
Physical and Theoretical Chemistry

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10.1016/j.memsci.2013.05.038

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title = "Porous polyoxadiazole membranes for harsh environment",

abstract = "A series of polyoxadiazoles with exceptionally high stability at temperatures as high as 370°C and in oxidative medium has been synthesized by polycondensation and manufactured into porous membranes by phase inversion. The membranes were characterized by thermal analysis (TGA), chemical stability was measured by immersion test, oxidative stability by Fenton's test, pore diameter by porosimetry and the morphology by FESEM. The polymers are soluble only in sulfuric acid and are stable in organic solvents like NMP, THF and isopropanol. The membranes selectivity was confirmed by separation of polystyrene standards with different molecular weights. Most membranes were characterized as having a cut-off of 60,000. g/mol. Being stable under harsh environments, the membranes have incomparable characteristics with perspectives of application in chemical and pharmaceutical industry, catalytic reactors, in combination with oxidative processes and other applications so far envisioned only for ceramic membranes. {\textcopyright} 2013.",

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T1 - Porous polyoxadiazole membranes for harsh environment

AU - Maab, Husnul

AU - Nunes, Suzana Pereira

N1 - KAUST Repository Item: Exported on 2020-10-01

PY - 2013/10

Y1 - 2013/10

N2 - A series of polyoxadiazoles with exceptionally high stability at temperatures as high as 370°C and in oxidative medium has been synthesized by polycondensation and manufactured into porous membranes by phase inversion. The membranes were characterized by thermal analysis (TGA), chemical stability was measured by immersion test, oxidative stability by Fenton's test, pore diameter by porosimetry and the morphology by FESEM. The polymers are soluble only in sulfuric acid and are stable in organic solvents like NMP, THF and isopropanol. The membranes selectivity was confirmed by separation of polystyrene standards with different molecular weights. Most membranes were characterized as having a cut-off of 60,000. g/mol. Being stable under harsh environments, the membranes have incomparable characteristics with perspectives of application in chemical and pharmaceutical industry, catalytic reactors, in combination with oxidative processes and other applications so far envisioned only for ceramic membranes. © 2013.

AB - A series of polyoxadiazoles with exceptionally high stability at temperatures as high as 370°C and in oxidative medium has been synthesized by polycondensation and manufactured into porous membranes by phase inversion. The membranes were characterized by thermal analysis (TGA), chemical stability was measured by immersion test, oxidative stability by Fenton's test, pore diameter by porosimetry and the morphology by FESEM. The polymers are soluble only in sulfuric acid and are stable in organic solvents like NMP, THF and isopropanol. The membranes selectivity was confirmed by separation of polystyrene standards with different molecular weights. Most membranes were characterized as having a cut-off of 60,000. g/mol. Being stable under harsh environments, the membranes have incomparable characteristics with perspectives of application in chemical and pharmaceutical industry, catalytic reactors, in combination with oxidative processes and other applications so far envisioned only for ceramic membranes. © 2013.

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UR - https://linkinghub.elsevier.com/retrieve/pii/S0376738813004419

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DO - 10.1016/j.memsci.2013.05.038

M3 - Article

SN - 0376-7388

VL - 445

SP - 127

EP - 134

JO - Journal of Membrane Science

JF - Journal of Membrane Science

ER -

Porous polyoxadiazole membranes for harsh environment

Abstract

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