Large‐Area Layered Membranes with Precisely Controlled Nano‐Confined Channels DOI
Can Zhou, Chuangqi Zhao,

Zhidong Nie

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(40)

Published: July 1, 2024

Abstract Two‐dimensional (2D) nanosheets‐based membranes, which have controlled 2D nano‐confined channels, are highly desirable for molecular/ionic sieving and confined reactions. However, it is still difficult to develop an efficient method prepare large‐area membranes with high stability, orientation, accurately adjustable interlayer spacing. Here, we present a strategy produce metal ion cross‐linked precisely channels stability in different solutions using superspreading shear‐flow‐induced assembly strategy. For example, based on graphene oxide (GO) exhibit spacing ranging from 8.0±0.1 Å 10.3±0.2 Å, precision of down 1 Å. At the same time, value orientation order parameter ( f ) GO up 0.95 superb solutions. The present, can be generalized preparation variety materials, will expand application scope provide better performances membranes.

Language: Английский

Damping Supramolecular Elastomer for Steady Hypothermic Sensing DOI
Song Ma,

Haofei Qie,

Xin Yang

et al.

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

Published: Feb. 24, 2025

Abstract Flexible temperature sensors often use gels to achieve skin‐inspired softness, but the water evaporation and freezing of hydrogel leakage ionogel, cause unstable signal transmission inaccurate measurement at sub‐zero temperatures. Here steady hypothermic sensing is achieved by designing a supramolecular elastomer containing two types segments: liquid‐free iontronic segment transmit electrical charges prevent ion leakage, neutral with pendant chains damp vibration for stable transmission. The exhibits excellent tensile properties, adhesiveness, self‐healing, ionic conductivity A wireless system fabricated based on supermolecule elastomer, realizing accurate, steady, sensitive real‐time detection. Especially, sensor coefficient resistance (TCR) 8.87% °C −1 from −20 −15 °C, three five times higher than that most flexible sensors. There no significant difference in detected this an infrared thermal imaging camera. Such represents step toward highly accurate cold chain transportation beyond.

Language: Английский

Citations

2

Robust liquid crystal semi-interpenetrating polymer network with superior energy-dissipation performance DOI Creative Commons
Zhijun Yang, Yang Yang, Huan Liang

et al.

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

Published: Nov. 15, 2024

Liquid crystal networks (LCN) have attracted surging interest as extraordinary energy-dissipation materials owning to their unique dissipation mechanism based on the re-orientation of mesogens. However, how integrate high Young's modulus, good efficiency and wide effective damping temperature range in LCN remains a challenge. Here, we report strategy resolve this challenge by fabricating robust liquid semi-interpenetrating polymer network (LC-semi-IPN) consisting crystalline LC polymers (c-LCP). LC-semi-IPN demonstrates superior synergistic performance both mechanical properties, surpassing all currently reported LCNs. The crystallinity c-LCP endows with substantial leap modulus (1800% higher than single network). chain reptation also promotes an enhanced 200%. Moreover, its reaches up 130 °C, which is widest for By leveraging exceptional performance, can be further utilized functional architected structure density deformation-resistance. design energy achieving simultaneously properties challenging. authors fabricate properties.

Language: Английский

Citations

6

Large‐Area Layered Membranes with Precisely Controlled Nano‐Confined Channels DOI
Can Zhou, Chuangqi Zhao,

Zhidong Nie

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 16, 2024

Two-dimensional (2D) nanosheets-based membranes, which have controlled 2D nano-confined channels, are highly desirable for molecular/ionic sieving and confined reactions. However, it is still difficult to develop an efficient method prepare large-area membranes with high stability, orientation, accurately adjustable interlayer spacing. Here, we present a strategy produce metal ion cross-linked precisely channels stability in different solutions using superspreading shear-flow-induced assembly strategy. For example, based on graphene oxide (GO) exhibit spacing ranging from 8.0±0.1 Å 10.3±0.2 Å, precision of down 1 Å. At the same time, value orientation order parameter (f) GO up 0.95 superb solutions. The present, can be generalized preparation variety materials, will expand application scope provide better performances membranes.

Language: Английский

Citations

4

High Damping Polyurethane Elastomers with Wide Temperature Ranges DOI
Xiang Han, Di Wang, Xudong Chen

et al.

Polymer, Journal Year: 2025, Volume and Issue: unknown, P. 128307 - 128307

Published: March 1, 2025

Language: Английский

Citations

0

Armored polymer-fluid gels with integrated damping and impact protection across broad temperatures DOI
Guoqing Chen,

Jiabin Wu,

Zhenwu Wang

et al.

Science Advances, Journal Year: 2025, Volume and Issue: 11(15)

Published: April 9, 2025

Unpreferable vibrations and impacts pose substantial risks to sensitive devices, structures, the human body, demanding materials capable of providing both high energy dissipation impact protection across a broad temperature range. Traditional damping often fail meet these demands because trade-off between mechanical strength. We introduce an innovative strategy fabricate armored polymer-fluid gels (APFGs) that combine modulus for effective under extreme conditions. By using controlled surface cross-linking process through diffusion, we greatly enhance strength without sacrificing their capabilities. This asymmetric design results in unprecedented loss factor (tanδ > 0.5 from −45 degrees 135 Celsius, peaking at tanδ = 2.2) while achieving tensile 20 megapascals. method resolves long-standing damping-modulus trade-off, positioning APFGs as promising candidates robust electronics motion applications.

Language: Английский

Citations

0

Bio-emulated design of self-healing elastomers with superior vibration damping and impact-resilient stiffening DOI
S. Maity,

Nishikanta Singh,

Sanjib Banerjee

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163005 - 163005

Published: April 1, 2025

Language: Английский

Citations

0

Co-initiating-system dual-mechanism drives the design of printable entangled polymer multinetworks DOI Creative Commons
Wei An, Qian Wang,

Jupen Liu

et al.

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

Published: May 12, 2025

Entanglement significantly enhances the mechanical performance and functionality of both natural synthetic materials. However, developing straightforward, versatile strategies for creating high-performance entangled polymer materials remains a challenge. Here, co-initiating-system dual-mechanism strategy is designed fabricating printable multinetworks. This thermal-light dual-initiation process benefits synthesis high-molecular-weight polymers promotes rapid formation multinetworks within hydrogels. The resulting long chains enable hydrogels with higher performance, lower stress relaxation, activation energy compared to short chain-contained samples. Such method proves more effective than traditional self-thickening strengthening techniques enhancing hydrogel entanglements also compatible additive manufacturing, enabling design complex 2D webs adaptive capable detecting sensing applications. work provides an designing materials, which are set impact numerous fields, from advanced material science beyond.

Language: Английский

Citations

0

Chain Motion and Energy Variation of Dynamic Cross-Linked Polymers DOI
Xiaoxu Liu,

Zilu Liu,

Jing Bai

et al.

Macromolecules, Journal Year: 2025, Volume and Issue: unknown

Published: May 22, 2025

Language: Английский

Citations

0

High‐Strength, Self‐Healing, and Conductive Polyurethane Enabled by Double Crosslinking Network for Advanced Multifunctional Strain Sensors DOI
Yuxuan Xie, Changsheng Wang, Xiwei Xu

et al.

Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown

Published: May 23, 2025

Abstract Flexible and stretchable conductive elastomers have broad application prospects in health monitoring, wearable flexible sensor, information encryption. However, the current electronic conductors fillers easily fall off, performance is unstable, other problems limit their practical applications. Therefore, developing a elastomer that combines high mechanical properties, good compatibility of filler with substrate, stable conductivity remains significant challenge. In this thesis, self‐healing excellent conductivity, substrate successfully synthesized by introducing high‐density hydrogen bonding dynamic disulfide into polyurethane network addition high‐performance filler, carbon black (Super P). It possesses 8.4 × 10 −4 S cm −1 at room temperature, tensile strength 27.5 MPa, an elongation break 578.7%, as well resilience 46% efficiency. Wearable strain sensors, designed for durability, stability, sensitivity, are ideal detecting human motion, monitoring rehabilitation training, enabling encrypted transmission. This study provides new ideas high‐performance, self‐repairable, recyclable materials, which promotes development devices.

Language: Английский

Citations

0

Stabilizing Metal Coating on Flexible Devices by Ultrathin Protein Nanofilms DOI
Yingying Zhang, Haojie Chen, Changhong Linghu

et al.

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

Published: Nov. 14, 2024

Abstract The significant modulus difference between a metal coating and polymer substrate leads to interface mismatches, seriously affecting the stability of flexible devices. Therefore, enhancing adhesion layer on an inert prevent delamination becomes key challenge. Herein, ultrathin protein nanofilm (UPN), synthesized by disulfide‐bond‐reducing aggregation, is proposed as strong adhesive enhance coating. Unlike traditional biopolymer adhesives with micrometer‐scale thicknesses, UPN minimized nanometer/single‐molecular scale. Such thereby effectively enhances interfacial strength reduces cohesion contribution in entire system directly connecting two interfaces nearly single‐molecular thickness. Using layer, multifunctional could be reliably adhered substrates ion sputtering, delivering unprecedented even under repetitive mechanical deformation. Applications this design include reversible transparency control, tension‐responsive encryption, reusable optical sensing, wearable capacitive touch sensors. This work highlights UPN's potential create bonding polymers coatings, offering biocompatible solution high surface activity low cohesion, facilitating development hybrid devices stable nano‐coating.

Language: Английский

Citations

3