Shape Memory Supramolecular Polymer Gels Constructed by Pillar[5]arene-Based Mechanically Interlocked Polymer Networks DOI

Wenhuan Zhang,

Jin-Fa Chen, Wenjuan Qu

et al.

Macromolecules, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 24, 2024

Mechanically interlocked networks are cross-linked by mechanically polymers, whose dynamic mechanical bonding provides a solid foundation for their application in materials science. Noncovalent interactions indispensable linkages building supramolecular polymers but exhibit low strength. Therefore, this paper, we have designed and synthesized class of polymer (MISPNs) with shape memory behavior, using which prepared gel solvent-responsive behavior reversible light transmittance changes response to noncovalent interactions. It was found that the naphthalene-functionalized pillar[5]arene (compound 3) served as backbone MISPNs, its topology not only ensured good stability also endowed properties materials. Meanwhile, abundant oxygen (O) sulfur (S) atoms form multiple hydrogen bonds H protonated solvent, contributes transmission The herein reported MISPNs offer possible strategy development multifunctional properties, sensitive stimulus excellent smart information protection properties.

Language: Английский

Mechanical Stretch α‐Cyclodextrin Pseudopolyrotaxane Elastomer with Reversible Phosphorescence Behavior DOI Creative Commons
Yi Zhang, Yong Chen,

Jian‐Qiu Li

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(14)

Published: Feb. 4, 2024

Abstract Polyethylene glycol chains in two terminals of the naphthalene functional group are threaded into α‐cyclodextrin cavities to form pseudopolyrotaxane (NPR), which not only effectively induces phosphorescence by cyclodextrin macrocycle confinement, but also provides interfacial hydrogen bonding assembly function between polyhydroxy groups and waterborne polyurethane (WPU) construct elastomers. The introduction NPR endows elastomer with enhanced mechanical properties excellent room temperature phosphorescent (RTP) emission (phosphorescence remains water, acid, alkali, organic solvents, even at 160 °C high temperatures). Especially, reversible mechanically responsive behavior intensity increased three times under 200% strain) can be observed stretch recover process, owing strain‐induced microstructural changes further inhibiting non‐radiative transition vibration NPR. Therefore, changing supramolecular elastomers through stretching a new approach for luminescent materials.

Language: Английский

Citations

15
Ultralong Blue Organic Room‐Temperature Phosphorescence Promoted by Green Assembly DOI
Zhongyuan Chen, Zhaojun Chen, Yuqi Zhu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(46)

Published: July 9, 2024

Abstract In recent years, there is a growing interest in developing ultralong organic room‐temperature phosphorescence (ORTP) with lifetimes the range of seconds. As one important three primary colors, blue ORTP an indispensable core component RTP regulation and application, however, large Stokes shift characteristics pose certain challenges ORTP. Here, new family phosphors are synthesized realized through crystal assembly water phase. Remarkably, compared to materials obtained phases, enabled long‐lived up 2.3 s quantum yield reached as high 29.27%. addition efficient green form, such dark possessed thermal stability flexible tunability. Moreover, superiority selected components demonstrated by comparing them polymer proposed show great potential programmable information encryption/anti‐counterfeiting.

Language: Английский

Citations

7
Advanced Stimuli-responsive Host-Guest Biomaterials for Treating Bacterial Infections DOI

Yuhao You,

Hui Sun,

Ziying Cheng

et al.

Polymer, Journal Year: 2024, Volume and Issue: 307, P. 127312 - 127312

Published: June 22, 2024

Language: Английский

Citations

5
Highly efficient ionic actuators enabled by sliding ring molecule actuation DOI Creative Commons
Chao Lü, Wei Chen, Xiaohong Zhang

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: March 12, 2025

Ionic actuators with capability of electro-mechanical transduction are emerging as a useful platform for artificial intelligence and modern medical instruments. However, the insufficient ion transport inside material interfaces usually leads to limited energy efficiency density actuators. Here, we report polyrotaxane interface adjustable based on sliding-ring effect highly-efficient ionic The switch status channels is synchronous actuation strains, barrier interfacial transfer reduced. As result, gets significantly improved. as-delivered devices stronger than that mammalian skeletal muscle. Based high performances, demonstrate fiber-shape soft actuator can be directly injected into biological tissue just using syringe. injectable promising surgical navigation physiological monitoring. Traditional capacitive mechanism suffers from low efficiency. authors sliding ring large density.

Language: Английский

Citations

0
Enabling Multifunctional Bio-Based Waterborne Polyurethane Through Phosphoric Acid-Assisted Exfoliation and Polyphenol-Mediated Assembly of Zirconium Phosphate Nanoplatelets for Patternable Coating DOI
Jiabo Shi, Xiaoyi Wu, Sheng Li

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Internal Locking and External Anchoring — A Strategy for Constructing Efficient and Ultralong Room‐Temperature Phosphorescence Materials DOI

Yuanshan Huang,

Y. Y. Liu, Xin Zheng

et al.

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Abstract Room‐temperature phosphorescence (RTP) polymer‐based materials have attracted widespread attention due to their advantages of the desired flexibility and processability, high thermal stability, simple synthesis. Nevertheless, phosphorescent efficiency these is generally low for rotation vibration luminophores. Herein, an “internal locking external anchoring” strategy proposed completely fix luminophores by introducing thiophene carboxylic acid derivatives into polymers. The resulting RTP exhibit a quantum yield up 69%, exceeding currently reported interaction between S adjacent C═O in carboxyl group acts as intramolecular conformational lock, while strong hydrogen bonds polymers guest molecules serve anchors. rotational vibrational motion constrained synergism effect internal anchoring. Additionally, facilitates spin–orbit coupling charge transfer molecules. As result, show ultralong pure with ultrahigh efficiency. Their performance can be adjusted changing aromatic heterocyclic guests. This work presents novel universal way developing highly efficient materials.

Language: Английский

Citations

0
Enabling multifunctional bio-based waterborne polyurethane through polyphenol-mediated assembly of zirconium phosphate nanoplatelets for patternable coating DOI
Jiabo Shi, Xiaoyi Wu, Sheng Li

et al.

Composites Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 111178 - 111178

Published: April 1, 2025

Language: Английский

Citations

0
High-Temperature Phosphorescence of Carbon Dots by a Synergistic Locking Strategy DOI
Yuan Li,

Longchuang Li,

Ruiwen Shao

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

Phosphorescent materials have potential applications in anticounterfeiting and optoelectronics, but their luminescence is generally quenched at elevated temperatures. Herein, a synergistic locking strategy has been developed to achieve high-temperature phosphorescence (HTP) of carbon dot (CD) composites. Impressively, the CD composites retain over 90% 75% intensity temperatures up 110 170 °C, respectively. Even higher than persists for 5 s, demonstrating remarkable stabilization triplet excitons. Experimental theoretical results revealed that this outstanding thermal resistance stems from effect interlayer covalent bridges multiple hydrogen bonding interface. Furthermore, by adjusting degree graphitization, multicolor HTP ranging blue red achieved This work not only provides facile versatile way construct CD-based also expands heat-resistant display environments.

Language: Английский

Citations

0
Self‐Lubricating and Self‐Healing Polyurethane Elastomer as a Meniscal Prosthesis to Delay Osteoarthritis Progression DOI
Yi Zhou, Xia Jiang, Xiaolong Yang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 14, 2025

Abstract The absence of a meniscal prosthesis that fully accommodates the complex motion demands human knee joint remains challenge in clinical practice. This study synthesized polyurethane elastomer with enhanced mechanical properties, featuring dynamic dimethyldioxime‐urethane structure provides self‐healing capabilities. Additionally, adamantane‐grafted hyaluronic acid has been integrated into containing cyclodextrin, imparting self‐lubricating properties through supramolecular host‐guest interactions between adamantane and cyclodextrin. innovative is utilized to fabricate (DPU@HA). In vitro experiments demonstrated DPU@HA's exceptional cytocompatibility chondrocytes. vivo studies revealed DPU@HA significantly protected articular cartilage following meniscus removal by reducing high stress within cartilage, thereby inhibiting Piezo1 overactivation subsequent chondrocyte apoptosis. With its (DPU@HA) holds promise for applications preventing progression osteoarthritis after meniscectomy.

Language: Английский

Citations

0
In Situ Reversible and Robust Mechano‐Responsive Ultralong Phosphorescence of Polyurethane Elastomer DOI

Jinzheng Chen,

Faxu Lin,

Danman Guo

et al.

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

Published: Oct. 28, 2024

Abstract Though mechano‐responsive luminescent materials obtained much attention, most of their responses are non‐reversible, let alone in situ reversible. Here, the study presents a new strategy to push through this limitation for applications, which relies on reversible (MR) hydrogen bonding interactions and polymer chain orientation among doped polyurethane (PU) elastomer. The radiative nonradiative transitions inside these phosphorescent triphenylene‐based aromatic secondary amines (TpNP TpNPO) PU matrix can be accordingly modulated by MR variations, including chains between emitters PU, respectively. Surprisingly, intensities, quantum yields, even lifetimes ultralong phosphorescence correlate well with stress showing triple mechano‐enhancement small threshold value 7.9 MPa. Importantly, rapidly phosphorescences possess excellent repeatability, is still displayed after >500 cycles loading/unloading. Based such robust highly sensitive afterglow, have been demonstrated applications no interruption background several fields, micro‐crack detection, material damage prediction, limb movement monitoring, information encryption. This work provides insights developing innovative improved luminescence behavior.

Language: Английский

Citations

2