articleNature CommunicationsNov 22, 2023GOLD OA

Anhydrous interfacial polymerization of sub-1 Å sieving polyamide membrane

GZGuangjin ZhaoHGHaiqi GaoZQZhou QuHFHongwei FanHMHong Meng

Beijing University of Chemical Technology · Xinjiang University

PubMed
Indexed incrossrefdoajpubmed

Abstract

Abstract Highly permeable polyamide (PA) membrane capable of precise ionic sieving can be utilized for many energy-efficient chemical separations. To fulfill this target, it is crucial to innovate membrane-forming process to induce a narrow pore-size distribution. Herein, we report an anhydrous interfacial polymerization (AIP) at a solid-liquid interface where the amine layer sublimated is in direct contact with the alkane containing acyl chlorides. In such a heterophase interface, water-caused side reactions are eliminated, and the amines in compact arrangement enable an intensive and orderly IP reaction, leading to a unique PA layer with an ionic sieving accuracy of 0.5 Å. The AIP-PA membrane demonstrates…

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Topics & keywords

Topics
Keywords
  • Anhydrous
  • Polyamide
  • Interfacial polymerization
  • Polymerization
  • Membrane
  • Chemical engineering
  • Materials science
  • Polymer chemistry
UN Sustainable Development Goals
  • Affordable and clean energy
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