Water Molecule as a Dynamic Cross-Linker for Creating Multifunctional Poly(ionic liquid) Porous Membranes,Accounts of Materials Research

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Water Molecule as a Dynamic Cross-Linker for Creating Multifunctional Poly(ionic liquid) Porous Membranes
Accounts of Materials Research ( IF 14.0 ) Pub Date : 2024-08-05 , DOI: 10.1021/accountsmr.4c00130
Yue Shao ₁ , Hong Wang ₁

Affiliation

Supramolecular polyelectrolyte porous membranes (SPPMs), which structurally integrate supramolecular material properties, electrolyte characteristics and pore confinement effects into a membrane, represent an exciting class of materials targeted for a broad range of applications in modern science and technology. However, owing to the intrinsic water solubility of conventional polyelectrolytes and the complex bonding mode arising from their charged nature, a long-standing challenge in the field has been the development of reliable preparation methods for fabricating high-quality SPPMs with controllable pore architectures and programmable functionalities. There have been a few characteristic attempts at achieving SPPMs. One involves layer-by-layer assembly of polyelectrolyte species through the strategic utilization of “orthogonal” noncovalent interactions; the other involves self-assembly of amphiphilic polyelectrolyte block copolymers, forming SPPMs. However, considering the multiple tedious preparation steps, the use of large amounts of organic solvents, and/or expensive precursors, these approaches suffer from some inherent limitations for the scalable preparation of SPPMs. Undoubtedly, direct assembly of polyelectrolytes in water to produce SPPMs is a priority because of its eco-friendly nature and ease of scaling up.

中文翻译：

水分子作为动态交联剂，用于创建多功能多孔（离子液体）多孔膜

超分子聚电解质多孔膜（SPPM）在结构上将超分子材料特性、电解质特性和孔隙限制效应整合到膜中，是一类令人兴奋的材料，适用于现代科学和技术的广泛应用。然而，由于传统聚电解质固有的水溶性以及其带电性质产生的复杂键合模式，该领域长期面临的挑战是开发可靠的制备方法，以制造具有可控孔隙结构和可编程功能的高质量 SPPM。已经有一些实现 SPPM 的特色尝试。一种涉及通过战略性利用“正交”非共价相互作用来逐层组装聚电解质物质;另一种涉及两亲性聚电解质嵌段共聚物的自组装，形成 SPPM。然而，考虑到多个繁琐的制备步骤、使用大量有机溶剂和/或昂贵的前驱体，这些方法在可扩展制备 SPPM 方面存在一些固有的限制。毫无疑问，将聚电解质直接组装在水中以生产 SPPM 是一个优先事项，因为它具有环保性质且易于放大。

更新日期：2024-08-05

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