Salt-responsive polyamide thin-film nanocomposite membrane based on zwitterionic polymeric nanoparticles for high-efficient dye desalination

Mi, Yi-Fang; Xia, Wen; Gu, Bing-Xin; Ma, Rong; Ji, Yan-Li

doi:10.1016/j.memsci.2024.123094

Journal of Membrane Science

2024

DOI: 10.1016/j.memsci.2024.123094

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Salt-responsive polyamide thin-film nanocomposite membrane based on zwitterionic polymeric nanoparticles for high-efficient dye desalination

Yi-Fang Mi,

Wen Xia,

Bing-Xin Gu

et al.

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Cited by 3 publications

References 42 publications

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Self‐Polymerized Tough and High‐Entanglement Zwitterionic Functional Hydrogels

Wei,

Yang,

Qiu

et al. 2024

Small

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Zwitterionic hydrogels exhibit great potential in biomedical applications due to their antifouling properties and biocompatibility. However, the single‐network structure of pure zwitterionic hydrogels leads to a low toughness and strength, limiting their application in biomedical fields. In this work, a high entanglement sulfobetaine methacrylate‐dopamine hydrogel (SBMA‐DA‐PE) with low cross‐linker content and high monomer concentration is prepared by using a dopamine oxidative radical polymerization method. Compared to a regular zwitterionic hydrogel, the SBMA‐DA‐PE hydrogel exhibits a 5‐fold increase in tensile fracture stress and a 10‐fold increase in compressive fracture stress. The SBMA‐DA‐PE hydrogel possesses excellent mechanical properties (the maximum compressive stress ≥4.85 MPa, the maximum compressive strain ≥90%). Besides, the non‐covalent interactions between catechol or ortho‐quinones within the SBMA‐DA‐PE hydrogel, combined with strong intermolecular electrostatic interactions, endow the SBMA‐DA‐PE hydrogel with great self‐healing capabilities and fatigue resistance. The SBMA‐DA‐PE hydrogel demonstrates low swellability and possesses good antifouling properties. Furthermore, the good printability and conductivity of the tough SBMA‐DA‐PE hydrogel endows it with new possibilities for developing biological 3D scaffolds and electronic devices. Overall, this work provides new insights into the preparation of zwitterionic hydrogels with high mechanical strength and multi‐functionality for biomedical applications.

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Self‐Polymerized Tough and High‐Entanglement Zwitterionic Functional Hydrogels

Wei,

Yang,

Qiu

et al. 2024

Small

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Thin-film composite (TFC) membranes for sustainable desalination and water reuse: A perspective

Lim,

Goh,

Nadzri

et al. 2025

Desalination

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In-situ confined preparation of COF@GO nanofiltration membranes for high-efficiency dye removal

Ge,

Huo,

Nie

et al. 2025

Separation and Purification Technology

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Salt-responsive polyamide thin-film nanocomposite membrane based on zwitterionic polymeric nanoparticles for high-efficient dye desalination

Cited by 3 publications

References 42 publications

Self‐Polymerized Tough and High‐Entanglement Zwitterionic Functional Hydrogels

Self‐Polymerized Tough and High‐Entanglement Zwitterionic Functional Hydrogels

Thin-film composite (TFC) membranes for sustainable desalination and water reuse: A perspective

In-situ confined preparation of COF@GO nanofiltration membranes for high-efficiency dye removal

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