Intelligent anti-impact elastomers by precisely tailoring the topology of modular polymer networks

Cheng, Jianfeng; Yao, Xianhua; Zhang, Zhipeng; Tan, Yizhong; Hu, Nan; Ma, Chunfeng; Zhang, Guangzhao

doi:10.1039/d4mh00002a

Mater. Horiz.

2024

DOI: 10.1039/d4mh00002a

|View full text |Cite

Intelligent anti-impact elastomers by precisely tailoring the topology of modular polymer networks

Jianfeng Cheng,

Xianhua Yao,

Zhipeng Zhang

et al.

Abstract: Utilizing the modular construction strategy, intelligent anti-impact elastomers with varying topology network structures have been prepared by tailoring the stereoscopic and linear building blocks as independent modules.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article5

Relationship

Self Cite0

Independent5

Authors

Journals

Cited by 6 publications

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Sterically Hindered Organogels with Self‐Healing, Impact Response, and High Damping Properties

Cheng,

Fu,

et al. 2024

Advanced Materials

View full text Add to dashboard Cite

Organogel materials are vital for impact or shock resistance because of their highly tailored dynamic properties. However, concurrently achieving excellent anti‐impact and damping performances, high stability, and self‐healing properties is challenging. Herein, a novel intelligent protective organogel (IPO) comprising a dynamic boronic ester containing poly(urethane–urea) as the network skeleton with a matching mesh size is synthesized, the network precisely entraps the hyperbranched fluid used as the bulky solvent via steric hindrance. The IPO exhibits self‐healing ability, excellent impact responsiveness (a 1950‐fold increase in flow stress under various impact speeds), and energy dissipation (the loss factor >0.8 from 10−4 to 104 Hz). The IPO maintains its dynamic mechanical properties during hot pressing and hydrolysis, exhibiting high stability. Furthermore, the IPO exhibits omnibearing protection. When used as a protective coating, the IPO dissipates the impact force by 87% and 89% of control upon passive and active impact, respectively. When used as a shock pad, it attenuates 91% of the amplitude in the high‐frequency vibrations. This study offers a novel perspective on the synthesis of tailored sterically hindered organogel and provides valuable insights into the development of next‐generation intelligent protective materials that exhibit impact and vibration resistance.

show abstract

Sterically Hindered Organogels with Self‐Healing, Impact Response, and High Damping Properties

Cheng,

Fu,

et al. 2024

Advanced Materials

View full text Add to dashboard Cite

show abstract

Stabilizing Metal Coating on Flexible Devices by Ultrathin Protein Nanofilms

Zhang,

Ren,

Linghu

et al. 2024

Advanced Materials

View full text Add to dashboard Cite

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

show abstract

Energy Dissipation and Toughening of Covalent Networks via a Sacrificial Conformation Approach

Wang,

Wei,

Liu

et al. 2024

Angewandte Chemie

View full text Add to dashboard Cite

Covalent polymer networks find wide utility in diverse engineering applications owing to their desirable stiffness and resilience. However, the rigid covalent chemical structure between crosslinking points imposes limitations on enhancing their toughness. Although the incorporation of sacrificial chemical bonds has shown promise in improving toughness through energy dissipation, composite networks struggle to maintain both rapid recovery and stiffness. Consequently, a significant challenge persists in achieving a covalent network that combines high strength, stiffness, toughness, and fast recovery performance. To address this challenge, we propose a novel sacrificial structure termed "sacrificial conformation." In this approach, β‐cyclodextrin is covalently embedded into the network skeleton as the sacrificial conformation element. Compared to traditional covalent networks (LCN), well‐designed cyclodextrin‐embedded covalent network (CCN) exhibit a 100‐fold increase in Young's modulus and a 60‐fold increase in toughness. Importantly, CCN maintains excellent elasticity, ensuring swift recovery after deformation. This sacrificial conformational strategy enables efficient energy dissipation without necessitating the rupture of chemical bonds, thereby overcoming the limitations of traditional approaches. This advancement holds great promise for the design and fabrication of advanced elastomers and hydrogels with superior mechanical properties and dynamic behavior.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Intelligent anti-impact elastomers by precisely tailoring the topology of modular polymer networks

Abstract: Utilizing the modular construction strategy, intelligent anti-impact elastomers with varying topology network structures have been prepared by tailoring the stereoscopic and linear building blocks as independent modules.

Cited by 6 publications

References 53 publications

Sterically Hindered Organogels with Self‐Healing, Impact Response, and High Damping Properties

Sterically Hindered Organogels with Self‐Healing, Impact Response, and High Damping Properties

Stabilizing Metal Coating on Flexible Devices by Ultrathin Protein Nanofilms

Energy Dissipation and Toughening of Covalent Networks via a Sacrificial Conformation Approach

Contact Info

Product

Resources

About