Two‐Dimensional Living Supramolecular Polymerization: Improvement in Edge Roughness of Supramolecular Nanosheets by Using a Dummy Monomer

Jin, Zhehui; Sasaki, Norihiko; Kishida, Natsuki; Takeuchi, Masayuki; Wakayama, Yutaka; Sugiyasu, Kazunori

doi:10.1002/chem.202302181

Cited by 3 publications

(1 citation statement)

References 47 publications

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“…Various innovative strategies have been employed by different research groups to design these dormant monomer states. Examples include metastable conformationally locked monomers, , high-energy off-nucleation aggregated states, , and stimuli/reaction-responsive inactive monomers . These elegant designs have provided control over the nucleation step in the supramolecular polymerization process, resulting in precision structures with controlled dispersity, size, and monomer sequence .…”

Section: Introductionmentioning

confidence: 99%

Controlled Supramolecular Polymerization via Bioinspired, Liquid–Liquid Phase Separation of Monomers

Patra,

Chandrabhas,

Dhiman

et al. 2024

J. Am. Chem. Soc.

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Dynamic supramolecular assemblies, driven by noncovalent interactions, pervade the biological realm. In the synthetic domain, their counterparts, supramolecular polymers, endowed with remarkable self-repair and adaptive traits, are often realized through bioinspired designs. Recently, controlled supramolecular polymerization strategies have emerged, drawing inspiration from protein self-assembly. A burgeoning area of research involves mimicking the liquid−liquid phase separation (LLPS) observed in proteins to create coacervate droplets and recognizing their significance in cellular organization and diverse functions. Herein, we introduce a novel perspective on synthetic coacervates, extending beyond their established role in synthetic biology as dynamic, membraneless phases to enable structural control in synthetic supramolecular polymers. Drawing parallels with the cooperative growth of amyloid fibrils through LLPS, we present metastable coacervate droplets as dormant monomer phases for controlled supramolecular polymerization. This is achieved via a π-conjugated monomer design that combines structural characteristics for both coacervation through its terminal ionic groups and one-dimensional growth via a π-conjugated core. This design leads to a unique temporal LLPS, resulting in a metastable coacervate phase, which subsequently undergoes one-dimensional growth via nucleation within the droplets. In-depth spectroscopic and microscopic characterization provides insights into the temporal evolution of disordered and ordered phases. Furthermore, to modulate the kinetics of liquid-to-solid transformation and to achieve precise control over the structural characteristics of the resulting supramolecular polymers, we invoke seeding in the droplets, showcasing living growth characteristics. Our work thus opens up new avenues in the exciting field of supramolecular polymerization, offering general design principles and controlled synthesis of precision self-assembled structures in confined environments.

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Section: Introductionmentioning

confidence: 99%

Controlled Supramolecular Polymerization via Bioinspired, Liquid–Liquid Phase Separation of Monomers

Patra,

Chandrabhas,

Dhiman

et al. 2024

J. Am. Chem. Soc.

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Study on the damage characteristics of high-temperature superconducting cable insulation under air gap discharge

Pan,

Zhou,

Wang

et al. 2024

J Mater Sci: Mater Electron

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This study explores the impact of small air gaps in high-temperature superconducting cables on the insulating material polypropylene-laminated paper (PPLP), and the aging rules and mechanisms of the insulating material during practical uses. An air gap discharge test platform was built to simulate air gap fault defects of superconducting cables in the real operating environment. Hierarchical clustering method was used to divide the gap discharge process of defect model into four stages. Insulation damage assessment was conducted on the intermediate layer PP of the superconducting insulation material PPLP at different discharge stages, revealing surface changes and periodic alterations in dielectric properties. The morphological features, roughness, infrared spectra, dielectric loss, surface resistivity, and other phase characteristics of the superconducting insulation layer material were analyzed at different stages of air gap defects. Molecular group cracking in PP was attributed to the bond breakage on the main chain. These findings provide insights into high-temperature superconducting cable insulation under air gap discharge and provide a guideline for practical applications in semi-conductive industries.

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The Hamilton Receptor in Supramolecular Polymer Sciences

Wagay,

Ali

2024

Top Curr Chem (Z)

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Two‐Dimensional Living Supramolecular Polymerization: Improvement in Edge Roughness of Supramolecular Nanosheets by Using a Dummy Monomer

Cited by 3 publications

References 47 publications

Controlled Supramolecular Polymerization via Bioinspired, Liquid–Liquid Phase Separation of Monomers

Controlled Supramolecular Polymerization via Bioinspired, Liquid–Liquid Phase Separation of Monomers

Study on the damage characteristics of high-temperature superconducting cable insulation under air gap discharge

The Hamilton Receptor in Supramolecular Polymer Sciences

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