Designing Macrovoid-Free Polysulfone (PSf) Ultrafiltration (UF) Membranes with Tetraoxaundecane (TOU) Solvent.

Jadwiga Poniatowska, Kitty Nijmeijer, Zandrie Borneman

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Article in ACS applied polymer materials, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

3 authors.

Jadwiga PoniatowskaMembrane Materials and Processes, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.

Kitty NijmeijerMembrane Materials and Processes, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.ORCID https://orcid.org/0000-0002-1431-2174

Zandrie BornemanMembrane Materials and Processes, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.ORCID https://orcid.org/0000-0003-2215-8987

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Formation of macrovoids in the membrane structure is a common occurrence in the process of nonsolvent-induced phase separation (NIPS), yet it is often undesired due to low structural homogeneity, poor performance, and introduction of weak mechanical points. Here, we introduce an ether-based solvent, 2,5,7,10-tetraoxaundecane (TOU), for fabrication of macrovoid-free polysulfone (PSf) ultrafiltration (UF) membranes. We investigate how strong polymer-solvent affinity, high chain entanglement, and high viscosity influence the phase-inversion process and promote the formation of homogeneous membrane structures during NIPS. Membranes prepared from PSf/TOU dope solutions exhibited stable sponge-like morphology, without macrovoids, in contrast to PSf membranes prepared from the more common solvent

Indexed as

nonsolvent induced phase separation (NIPS)polysulfone (PSf)tetraoxaundecane (TOU)ultrafiltration (UF) membranewater treatment

Identifiers

PMID42871703

DOI10.1021/acsapm.6c02976

PMCPMC13660354

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.