Fabrication of Metal–Organic Polyhedrons Soft Membrane Utilizing Phase-Separation-Assisted Supramolecular Polymerization

IF 5.2 1区化学 Q1 POLYMER SCIENCE

Macromolecules Pub Date : 2025-01-05 DOI:10.1021/acs.macromol.4c0153010.1021/acs.macromol.4c01530

Yida Yang, Bowen Pang, Jun Yuan, Tao Wen, Shenglin Yao, Bingxu Ma, Wang Zeng, Junhao Dai, Taolin Sun*, Rui Zhang* and Wei Zhang*,

引用次数: 0

Abstract

Fabricating flexible membranes from porous metal–organic polyhedrons (MOPs) is in high demand for their industrial applications, yet it remains challenging. In the present study, we have successfully fabricated a soft self-healable 2D film with an elastic modulus of 10 MPa composed of 1-D supramolecular polymers by using MOPs grafted by 24 polymeric arms as monomers. The key to our success lies in implementing a phase-separation technique to generate a frustrated conformation for ligands at equatorial positions of MOPs, for 24 polymeric ligands. This frustration enables selective ligand exchange reactions, thus facilitating the supramolecular polymerization of MOPs with accurate pore structure in a controlled manner. In the meantime, the degree of supramolecular polymerization could be tailored by carefully tuning the size of the linkers.

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利用相分离辅助超分子聚合制备金属-有机多面体软膜

从多孔金属有机多面体（MOPs）制造柔性膜在工业应用中有很高的需求，但它仍然具有挑战性。在本研究中，我们成功地以24条聚合臂接枝的MOPs为单体，制备了由一维超分子聚合物组成的弹性模量为10 MPa的柔性自愈二维薄膜。我们成功的关键在于实现了一种相分离技术，为24个聚合物配体在MOPs的赤道位置产生了一个挫折构象。这种挫折使选择性配体交换反应成为可能，从而以可控的方式促进具有精确孔结构的MOPs的超分子聚合。同时，超分子聚合的程度可以通过仔细调整连接体的大小来调整。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Macromolecules 工程技术-高分子科学

CiteScore

9.30

自引率

16.40%

发文量

942

审稿时长

2 months

期刊介绍： Macromolecules publishes original, fundamental, and impactful research on all aspects of polymer science. Topics of interest include synthesis (e.g., controlled polymerizations, polymerization catalysis, post polymerization modification, new monomer structures and polymer architectures, and polymerization mechanisms/kinetics analysis); phase behavior, thermodynamics, dynamic, and ordering/disordering phenomena (e.g., self-assembly, gelation, crystallization, solution/melt/solid-state characteristics); structure and properties (e.g., mechanical and rheological properties, surface/interfacial characteristics, electronic and transport properties); new state of the art characterization (e.g., spectroscopy, scattering, microscopy, rheology), simulation (e.g., Monte Carlo, molecular dynamics, multi-scale/coarse-grained modeling), and theoretical methods. Renewable/sustainable polymers, polymer networks, responsive polymers, electro-, magneto- and opto-active macromolecules, inorganic polymers, charge-transporting polymers (ion-containing, semiconducting, and conducting), nanostructured polymers, and polymer composites are also of interest. Typical papers published in Macromolecules showcase important and innovative concepts, experimental methods/observations, and theoretical/computational approaches that demonstrate a fundamental advance in the understanding of polymers.