Designing Pyridinium-Catalyzed Interfacial Polymerization for High-Performance Acid-Resistant Nanofiltration Membranes.

Huawen Peng, Jiapeng Li, Qianqian Zhang, Qiang Zhao

Abstract read

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Article in Angewandte Chemie (International ed. in English), 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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4 authors.

Huawen PengKey Laboratory of Material Chemistry For Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, P. R. China.ORCID https://orcid.org/0009-0009-6339-7993

Jiapeng LiKey Laboratory of Material Chemistry For Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, P. R. China.

Qianqian ZhangKey Laboratory of Material Chemistry For Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, P. R. China.

Qiang ZhaoKey Laboratory of Material Chemistry For Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, P. R. China.ORCID https://orcid.org/0000-0002-0643-5916

Funding

National Natural Science Foundation of China 52473095National Natural Science Foundation of China 52525304

6 · The paper itself

Abstract

The "acyl ∼ amine" interfacial polymerization is widely studied to synthesize polyamide membranes, which, despite broad separation applications, suffer from poor acid stability. Cyanuric chloride (CC) can react with amines to form acid-stable C─N bonds, yet its third chloride atom is unreactive at room temperature, thus hindering the synthesis of selective membranes by interfacial polymerization. This work reported a pyridinium-catalyzed interfacial polymerization (PCIP) strategy to significantly improve CC's reactivity and synthesize high-performance, acid-resistant membranes. We designed a new monomer bearing triple pyridines, which were converted to positively charged pyridiniums during their interfacial polymerization with CC. These pyridiniums effectively reduce the electron density of CC rings via their electron-withdrawing capacity, and improve CC's substitution reactivity by orders of magnitude, thereby enabling the rapid (1 min) synthesis of a large-area (∼0.5 m

Indexed as

acid‐resistant membranesinterfacial polymerizationlithium recoverynanofiltrationpyridinium catalyzation

Identifiers

PMID42251647

DOI10.1002/anie.5703533

PMCPMC13427191

What OpenQuestion holds

Textmetadata

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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.