Microporous and functional group Co-designed polyesteramide membranes for efficient and broad-spectrum organic solvent nanofiltration

Zheng Liu; Yuxuan Sun; Heguo Han; Qifeng Zhang; Shenghai Li; Suobo Zhang

Advanced Membranes (Jan 2024)

Microporous and functional group Co-designed polyesteramide membranes for efficient and broad-spectrum organic solvent nanofiltration

Zheng Liu,
Yuxuan Sun,
Heguo Han,
Qifeng Zhang,
Shenghai Li,
Suobo Zhang

Affiliations

Zheng Liu: Key Laboratory of Polymer Eco Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
Yuxuan Sun: Key Laboratory of Polymer Eco Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; Corresponding author.
Heguo Han: Key Laboratory of Polymer Eco Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
Qifeng Zhang: Key Laboratory of Polymer Eco Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
Shenghai Li: Key Laboratory of Polymer Eco Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
Suobo Zhang: Key Laboratory of Polymer Eco Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China; Corresponding author. Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.

Journal volume & issue: Vol. 4
p. 100098

Abstract

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Organic solvent nanofiltration (OSN) is an emerging energy-efficient separations technology, which urgently requires easily processable OSN membranes with high selectivity and broad-spectrum organic solvent applicability to facilitate enhanced industrial applications. Herein, we describe the preparation of microporous polyesteramide (PEA) membranes through interfacial polymerization (IP) between amino-diphenol monomers and trimesoyl chloride (TMC) on a poly(ether ether ketone) (PEEK) support. The crosslinked network structures and large twisted monomers enhance the microporosity of PEA membranes, leading to a significant improvement in solvent permeance while maintaining high selectivity. The optimized PEA membrane demonstrates exceptional permeance for acetone (21.0 L m−2 h−1 bar−1) and methanol (14.3 L m−2 h−1·bar−1), with a molecular weight cut-off of 296 g mol−1. Additionally, the PEA/APH-diphenol membrane exhibits ultrafast permeance for the nonpolar solvent toluene (8.3 L m−2 h−1·bar−1), owing to the introduction of a large number of ester groups. Overall, PEA membranes prepared through the molecular-level structure design of IP monomers possess enormous industrial application potential owing to their high performance and broad-spectrum applications.

Published in Advanced Membranes

ISSN: 2772-8234 (Online)
Publisher: KeAi Communications Co. Ltd.
Country of publisher: China
LCC subjects: Technology: Chemical technology: Chemical engineering
Website: https://www.keaipublishing.com/en/journals/advanced-membranes/

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