Pyridine Isomer Effects in the Framework of Phase‐Separated Vitrimer‐Like Materials Operated with Trans‐N‐Alkylation Bond Exchange of Quaternized Pyridines DOI Open Access

Maho Suzuki,

Mikihiro Hayashi

Macromolecular Chemistry and Physics, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

Abstract Pyridine groups are known to form various types of bonds, including hydrogen, ionic, and coordination bonds. Another distinctive feature pyridine is the presence structural isomers. The effects isomers have been investigated, particularly for ortho‐ para‐ substituted pyridines, in relation their bond formation abilities interaction energies, which ultimately influence macroscopic physical properties. In this study, on quaternization bonds newly explored, based original design vitrimer‐like materials. polymer component a poly(acrylate) random copolymer containing , meta‐ side groups, cross‐linked by diiodo molecules through quaternized pyridines self‐aggregate into nano‐domains, exchange occurs via trans‐ N ‐alkylation an inter‐domain manner. differences related properties samples with three distinct isomers, creep stress relaxation behaviors materials investigated. Overall, study offers new insights isomer provides fresh perspective tuning bond‐exchangeable

Language: Английский

Biomimetic light-harvesting antennas via the self-assembly of chemically programmed chlorophylls DOI
S. Matsubara, Sunao Shoji, Hitoshi Tamiaki

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

This feature article describes strategies for constructing supramolecular aggregates of (semi)synthetic dyes, particularly chlorophyll derivatives to mimic the photosynthetic light-harvesting antennas.

Language: Английский

Citations

5
Supramolecular Polymer Additives as Repairable Reinforcements for Dynamic Covalent Networks DOI Creative Commons
Joost J. B. van der Tol, Shahzad Hafeez,

Andy P. G. Bänziger

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 17, 2024

Abstract Employing rigid (in)organic materials as reinforcement for dynamic covalent networks (DCNs) is an effective approach to develop high‐performance materials. Yet, recycling of these after failure often necessitates inefficient chemical reprocessing or inevitably alters their performance due unrepairable inert components. Here, a non‐covalent strategy presented by introducing supramolecular additive DCN that can reversibly depolymerize and reform on demand, therefore acting adaptive repairable reinforcement. The strong hydrogen‐bonding interactions in the polymer triazine‐1,3,5‐tribenzenecarboxamide ( S ‐ T ) strengthen at room temperature, while its nature allows easy one‐pot high temperatures. Depending wether covalently bond not, it play either role compatibilizer filler, providing synthetic tool control relaxation dynamics, reprocessability mechanical properties. Moreover, be chemically recovered with yield purity, showcasing recyclability composite. This conceptually novel temperature‐controlled dynamics highlights potential additives replace conventional reinforcements.

Language: Английский

Citations

5
Wide-range tunable circularly polarized luminescence in triphenylamine supramolecular polymers via charge-transfer complexation DOI Creative Commons
Yuchen Guo, Yifei Zhang,

Jianfei Ma

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Oct. 28, 2024

Circularly polarized luminescence materials with broad color tunability are highly valuable for applications in 3D display and photonic technologies. Here we show that incorporating intermolecular charge-transfer complexation into chiral supramolecular polymers is an efficient strategy to achieve this objective. Adjusting the strength between triphenylamine donors naphthalenemonoimide acceptors enables tunable circularly signals across visible light spectrum. This includes blue-colored emission donor polymers, as well green, yellow, orange red-colored donor-acceptor polymers. The packing modes further influenced by presence or absence of acetylene linkages on donors, resulting ground- excited-state charge transfer varying luminescent lifetimes. Additionally, white-light achieved encapsulating blue- orange-emitting species surfactant-based micelles a compartmentalized manner. Overall, manipulating provides effective approach wide-range materials.

Language: Английский

Citations

5
Evaluating the Drug Delivery Capacity of 3D Coordination Polymer for Anticancer Drugs DOI Open Access
Madiha Saqlain,

Hafiz Muhammad Zohaib,

Maroof Ahmad Khan

et al.

Chemistry - An Asian Journal, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 4, 2025

Abstract We synthesized {[Cd 2 (dTMP) (4,4'‐azpy) (H O) ] ⋅ 3(O)} n a novel three‐dimensional metal nucleotide coordination polymer (CP‐1). An assessment of the CP‐1 binding affinity for anticancer drugs was conducted using molecular dynamic simulations. The virtual screening results depict that has lot potential encapsulating anthracycline drug doxorubicin (DOX). It hasn′t yet been investigated how to accomplish high loading capacity, efficiency, and controlled release DOX in dTMP‐based 3D polymers. Utilizing as model our system drug‐loading vehicle, we used UV‐visible circular dichroism titrations examine effects its encapsulation release. mechanism through pH‐responsive behavior by adjusting pH value 8, 7, 6, 5. indicate robust at which facilitates on porous polymer. However, maximum cumulative 87.11 % observed higher correlation coefficient (R ) obtained 5 with Higuchi equation. indicated released primarily diffusion mechanism. polymer‘s ability encapsulate while also permitting possible controlled‐release is confirmed combined insights from experimental findings, energy graphs, RMSD analysis, radius gyration (Rg) data MD

Language: Английский

Citations

0
Interpenetrating Polymer Networks in Biomedical Fields: Recent Advanced and Applications DOI Open Access

Farangis Shahi,

Sara Zarei,

Razhan Salah Othman

et al.

Polymers for Advanced Technologies, Journal Year: 2025, Volume and Issue: 36(2)

Published: Feb. 1, 2025

ABSTRACT Recent developments in polymer materials have led to an increased implementation of hydrogels biomedical settings, especially the creation smart hydrogels. Traditional single‐network often exhibit challenges, such as poor mechanical strength, insufficient biocompatibility, and slow response rates. To address these issues, researchers introduced Interpenetrating Polymer Network (IPN) hydrogels, which significantly improve strength via topological entanglements physical interactions. This dual‐network design not only enhances biocompatibility but also responsiveness stimuli, endowing with distinctive properties like cell adhesion, conductivity, hemostatic functions, antioxidant abilities, color‐changing properties. The purpose this article is elucidate factors that trigger stimuli IPN their impacts on cellular behavior, various applications they can serve. A comprehensive overview provided regarding classification, mechanisms, performance attributes, related subjects. Ultimately, review emphasizes promise hold fulfilling increasing need for innovative improved features sector.

Language: Английский

Citations

0
Pyridine Isomer Effects in the Framework of Phase‐Separated Vitrimer‐Like Materials Operated with Trans‐N‐Alkylation Bond Exchange of Quaternized Pyridines DOI Open Access

Maho Suzuki,

Mikihiro Hayashi

Macromolecular Chemistry and Physics, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

Abstract Pyridine groups are known to form various types of bonds, including hydrogen, ionic, and coordination bonds. Another distinctive feature pyridine is the presence structural isomers. The effects isomers have been investigated, particularly for ortho‐ para‐ substituted pyridines, in relation their bond formation abilities interaction energies, which ultimately influence macroscopic physical properties. In this study, on quaternization bonds newly explored, based original design vitrimer‐like materials. polymer component a poly(acrylate) random copolymer containing , meta‐ side groups, cross‐linked by diiodo molecules through quaternized pyridines self‐aggregate into nano‐domains, exchange occurs via trans‐ N ‐alkylation an inter‐domain manner. differences related properties samples with three distinct isomers, creep stress relaxation behaviors materials investigated. Overall, study offers new insights isomer provides fresh perspective tuning bond‐exchangeable

Language: Английский

Citations

0