Enhancement of performance and stability of thin-film nanocomposite membranes for organic solvent nanofiltration using hypercrosslinked polymer additives

Yi-hui Zhou; Ammara Akram; Andrea J.C. Semiao; Richard Malpass-Evans; Cher Hon Lau; Neil B. McKeown; Weimin Zhang

doi:10.1016/j.memsci.2021.120172

Enhancement of performance and stability of thin-film nanocomposite membranes for organic solvent nanofiltration using hypercrosslinked polymer additives

Yi-hui Zhou, Ammara Akram, Andrea J.C. Semiao, Richard Malpass-Evans, Cher Hon Lau, Neil B. McKeown, Weimin Zhang

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

Abstract / Description of output

Hypercrosslinked polymer (HCP) additives were successfully incorporated into two polymer matrices: glassy polymer with intrinsic microporosity comprising ethanoanthracene and Tröger's base (PIM-EA-TB) as well as rubbery polydimethylsiloxane (PDMS), forming thin-film nanocomposite (TFN) membranes for organic solvent nanofiltration (OSN) applications. The thermal stability and surface morphology of TFN membranes were characterized by TGA and SEM. OSN results showed that HCP additives increased the alcohol permeances for both kinds of membranes as it provided extra pathways for alcohol molecules to transport through the membranes. Particularly, the PIM-EA-TB membrane gained above 32% improvement on methanol and ethanol permeances after loading of 5 wt% HCP, whilst maintaining a rejection of 92% for Rose Bengal. Moreover, the physical aging of PIM-EA-TB membrane was retarded by HCP additives and the swelling of the PDMS membrane in non-polar solvents was reduced. In small quantities, the HCP nanoparticles proved to be effective additives to improve the OSN performances for both glassy and rubbery polymer membranes.

Original language	English
Article number	120172
Journal	Journal of Membrane Science
Volume	644
Early online date	14 Dec 2021
DOIs	https://doi.org/10.1016/j.memsci.2021.120172
Publication status	E-pub ahead of print - 14 Dec 2021

Keywords / Materials (for Non-textual outputs)

Hypercrosslinked polymer
Organic solvent nanofiltration
PDMS
Physical aging
PIM-EA-TB

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10.1016/j.memsci.2021.120172

202201221_McKeown_MEMSCI-D-21-02573-AAMAccepted author manuscript, 1.32 MBLicence: CC BY-NC-ND

https://www.sciencedirect.com/science/article/pii/S0376738821011133#!

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Zhou, Y., Akram, A., Semiao, A. J. C., Malpass-Evans, R., Lau, C. H., McKeown, N. B., & Zhang, W. (2021). Enhancement of performance and stability of thin-film nanocomposite membranes for organic solvent nanofiltration using hypercrosslinked polymer additives. Journal of Membrane Science, 644, Article 120172. Advance online publication. https://doi.org/10.1016/j.memsci.2021.120172

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title = "Enhancement of performance and stability of thin-film nanocomposite membranes for organic solvent nanofiltration using hypercrosslinked polymer additives",

abstract = "Hypercrosslinked polymer (HCP) additives were successfully incorporated into two polymer matrices: glassy polymer with intrinsic microporosity comprising ethanoanthracene and Tr{\"o}ger's base (PIM-EA-TB) as well as rubbery polydimethylsiloxane (PDMS), forming thin-film nanocomposite (TFN) membranes for organic solvent nanofiltration (OSN) applications. The thermal stability and surface morphology of TFN membranes were characterized by TGA and SEM. OSN results showed that HCP additives increased the alcohol permeances for both kinds of membranes as it provided extra pathways for alcohol molecules to transport through the membranes. Particularly, the PIM-EA-TB membrane gained above 32% improvement on methanol and ethanol permeances after loading of 5 wt% HCP, whilst maintaining a rejection of 92% for Rose Bengal. Moreover, the physical aging of PIM-EA-TB membrane was retarded by HCP additives and the swelling of the PDMS membrane in non-polar solvents was reduced. In small quantities, the HCP nanoparticles proved to be effective additives to improve the OSN performances for both glassy and rubbery polymer membranes.",

keywords = "Hypercrosslinked polymer, Organic solvent nanofiltration, PDMS, Physical aging, PIM-EA-TB",

author = "Yi-hui Zhou and Ammara Akram and Semiao, {Andrea J.C.} and Richard Malpass-Evans and Lau, {Cher Hon} and McKeown, {Neil B.} and Weimin Zhang",

note = "Funding Information: This study was financially supported by National Natural Science Foundation of China (Grant No. 42174091 and 41964003 ) and Jiangxi Provincial Natural Science Foundation (Grant No. 20202BAB201013 ). Publisher Copyright: {\textcopyright} 2021",

year = "2021",

month = dec,

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doi = "10.1016/j.memsci.2021.120172",

language = "English",

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TY - JOUR

T1 - Enhancement of performance and stability of thin-film nanocomposite membranes for organic solvent nanofiltration using hypercrosslinked polymer additives

AU - Zhou, Yi-hui

AU - Akram, Ammara

AU - Semiao, Andrea J.C.

AU - Malpass-Evans, Richard

AU - Lau, Cher Hon

AU - McKeown, Neil B.

AU - Zhang, Weimin

N1 - Funding Information: This study was financially supported by National Natural Science Foundation of China (Grant No. 42174091 and 41964003 ) and Jiangxi Provincial Natural Science Foundation (Grant No. 20202BAB201013 ). Publisher Copyright: © 2021

PY - 2021/12/14

Y1 - 2021/12/14

N2 - Hypercrosslinked polymer (HCP) additives were successfully incorporated into two polymer matrices: glassy polymer with intrinsic microporosity comprising ethanoanthracene and Tröger's base (PIM-EA-TB) as well as rubbery polydimethylsiloxane (PDMS), forming thin-film nanocomposite (TFN) membranes for organic solvent nanofiltration (OSN) applications. The thermal stability and surface morphology of TFN membranes were characterized by TGA and SEM. OSN results showed that HCP additives increased the alcohol permeances for both kinds of membranes as it provided extra pathways for alcohol molecules to transport through the membranes. Particularly, the PIM-EA-TB membrane gained above 32% improvement on methanol and ethanol permeances after loading of 5 wt% HCP, whilst maintaining a rejection of 92% for Rose Bengal. Moreover, the physical aging of PIM-EA-TB membrane was retarded by HCP additives and the swelling of the PDMS membrane in non-polar solvents was reduced. In small quantities, the HCP nanoparticles proved to be effective additives to improve the OSN performances for both glassy and rubbery polymer membranes.

AB - Hypercrosslinked polymer (HCP) additives were successfully incorporated into two polymer matrices: glassy polymer with intrinsic microporosity comprising ethanoanthracene and Tröger's base (PIM-EA-TB) as well as rubbery polydimethylsiloxane (PDMS), forming thin-film nanocomposite (TFN) membranes for organic solvent nanofiltration (OSN) applications. The thermal stability and surface morphology of TFN membranes were characterized by TGA and SEM. OSN results showed that HCP additives increased the alcohol permeances for both kinds of membranes as it provided extra pathways for alcohol molecules to transport through the membranes. Particularly, the PIM-EA-TB membrane gained above 32% improvement on methanol and ethanol permeances after loading of 5 wt% HCP, whilst maintaining a rejection of 92% for Rose Bengal. Moreover, the physical aging of PIM-EA-TB membrane was retarded by HCP additives and the swelling of the PDMS membrane in non-polar solvents was reduced. In small quantities, the HCP nanoparticles proved to be effective additives to improve the OSN performances for both glassy and rubbery polymer membranes.

KW - Hypercrosslinked polymer

KW - Organic solvent nanofiltration

KW - PDMS

KW - Physical aging

KW - PIM-EA-TB

U2 - 10.1016/j.memsci.2021.120172

DO - 10.1016/j.memsci.2021.120172

M3 - Article

AN - SCOPUS:85121213216

SN - 0376-7388

VL - 644

JO - Journal of Membrane Science

JF - Journal of Membrane Science

M1 - 120172

ER -

Enhancement of performance and stability of thin-film nanocomposite membranes for organic solvent nanofiltration using hypercrosslinked polymer additives

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Keywords / Materials (for Non-textual outputs)

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