Poly(2,6-dimethyl-1,4-phenylene oxide) hybrid membranes filled with magnetically aligned iron-encapsulated carbon nanotubes (Fe@MWCNTs) for enhanced air separation

Aleksandra Rybak , Aurelia Rybak , Waldemar Kaszuwara , Sławomir Boncel

Abstract

Various inorganic-organic hybrid membranes based on regular and modified poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) matrix and iron-encapsulated multi-wall carbon nanotubes (Fe@MWCNTs) were designed and prepared for air separation. Addition of Fe@MWCNTs into the PPO matrix has changed gas transport parameters (D, P, S and α) through the hybrid membranes. Indeed, we have demonstrated that application of magnetic field during the stage of nanotube-polymer membrane preparation has enhanced alignment of the nanotube filler in the polymer matrix and improved separation performance of the membranes. Additionally, hydroxylation of Fe@MWCNTs and sulfonation of PPO matrix – as applied to enhance the nanotube-polymer interphase via hydrogen bonding – also accompanied by external magnetic field have allowed to obtain membranes with higher permeability, diffusivity and permselectivity. Mechanical properties, such as tensile strength (Rm) and Young's modulus under tensile (E), as well as magnetic parameters of the membranes were further found as improved by the increase of Fe@MWCNT content and the presence of magnetic field.
Author Aleksandra Rybak - Politechnika Śląska
Aleksandra Rybak,,
-
, Aurelia Rybak - Politechnika Śląska
Aurelia Rybak,,
-
, Waldemar Kaszuwara (FMSE / DCFM)
Waldemar Kaszuwara,,
- Division of Construction and Functional Materials
, Sławomir Boncel
Sławomir Boncel,,
-
Journal seriesDiamond and Related Materials, ISSN 0925-9635, (A 25 pkt)
Issue year2018
Vol83
Pages21-29
Publication size in sheets0.5
Keywords in EnglishCNT, Inorganic-organic hybrid membranes, Air separation, Magnetic properties, Mechanical properties
DOIDOI:10.1016/j.diamond.2018.01.019
Languageen angielski
File
Diamond 83(2018)21.pdf 1.13 MB
Score (nominal)30
ScoreMinisterial score = 25.0, 02-03-2018, ArticleFromJournal
Ministerial score (2013-2016) = 30.0, 02-03-2018, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 2.561 (2) - 2016=2.103 (5)
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