An ion-terminated hyperbranched polymer towards multipurpose adhesive with record-high bonding strength and sensitive stress-sensing

Chen, Haiming; Lin, Haohao; Sun, Zaizheng; Li, He; He, Chaobin; Mao, Dongsheng

doi:10.1039/d2ta08457k

Cited by 16 publications

(7 citation statements)

References 50 publications

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“…(e) The A 5% EP-B 3 O 3 DEAs can still carry a weight of 2.5 kg after soaking in water for 30 days. (f) Comparison of the adhesion at room temperature, high temperature, ultralow temperature, hydrolysis stability, and tensile strength of the detachable adhesives reported in this study and other research groups. ,− …”

Section: Resultsmentioning

confidence: 85%

Robust Dynamic Epoxy Adhesives with High Environmental Tolerance Enabled by the Coordination of Small-Molecule Coupling Agents with Boroxine

Zheng,

Chen,

et al. 2023

ACS Appl. Polym. Mater.

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Developing dynamic epoxy adhesives (DEAs) with simultaneously strong adhesion, extreme environmental tolerance, and on-demand detachability is in high demand in the future but remains challenging. In this work, we prepared a robust and dynamic epoxy adhesive cross-linked with boroxines, and a small-molecule coupling agent was introduced to coordinate with boroxines to improve its environmental reliability. Owing to the high exchangeability of boroxines and the coordination of amino group with boroxines, the as-developed adhesive shows simultaneously good mechanical properties (tensile strength of 53.55 MPa, fracture toughness of ∼27.3 MJ m–3), excellent lap shear strength (20.5 MPa), good resistance to water (18.8 MPa after soaking in water for 30 days), pH, and high and low temperatures (20.1 MPa at 100 °C, 27.8 MPa at −196 °C), and can be quickly removed and recycled by soaking in specified solvents.

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Section: Resultsmentioning

confidence: 85%

Robust Dynamic Epoxy Adhesives with High Environmental Tolerance Enabled by the Coordination of Small-Molecule Coupling Agents with Boroxine

Zheng,

Chen,

et al. 2023

ACS Appl. Polym. Mater.

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“…The majority of the above tough adhesives via the incorporation of weak components undergo cohesive failure, mostly along with interfacial failure. 15,[30][31][32] This mixed failure behavior is often considered to be the optimal way to improve their adhesive strength and toughness. In contrast, herein, a different self-reinforcing polyurethane adhesive is synthesized to show the phenomenon of only interfacial failure yet still exhibiting superior adhesive strength and toughness.…”

Section: Introductionmentioning

confidence: 99%

A strain-reinforcing elastomer adhesive with superior adhesive strength and toughness

Li¹,

Dong²,

Li³

et al. 2023

Mater. Horiz.

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“…In addition, polar end groups can form robust interactions with other materials, imparting exceptional adhesive characteristics. As a consequence, elastic adhesive HBPs have attracted significant attention as promising interface enforcement materials for diverse optoelectronic devices 53 , 54 .…”

Section: Introductionmentioning

confidence: 99%

Hyperbranched polymer functionalized flexible perovskite solar cells with mechanical robustness and reduced lead leakage

Li,

Jia,

Wan

et al. 2023

Nat Commun

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Perovskite solar cells (PSCs) are multilayer structures. The interface between electron transport layer and perovskite is the mechanical weakest point in flexible PSCs due to its low fracture energy. Herein, we develop a highly adhesive polyamide-amine-based hyperbranched polymers to reinforce the interface. The interface fracture energy is improved from 1.08 to 2.13 J·m−2 by the hyperbranched polymers with adhesive groups and dynamic hydrogen bond networks. The polymer functionalized perovskite solar cells achieve superior power conversion efficiencies of 25.05% and 23.86% for rigid and flexible devices, respectively. Furthermore, the hyperbranched polymer contains abundant intramolecular cavities that can capture Pb2+. Pb leakage after solar cell damage is effectively suppressed. Our findings provide insights on designing adhesive interface layers towards high-efficiency, mechanical-stable and environment-friendly flexible perovskite solar cells.

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An ion-terminated hyperbranched polymer towards multipurpose adhesive with record-high bonding strength and sensitive stress-sensing

Abstract: The inherent contradiction between pressure-sensitive adhesives (PSA) and hot-melt adhesives (HMA) that originating from different molecular mechanisms remains a considerable challenge to develop high-performance, multipurpose and stress-sensing adhesive, despite it...

Cited by 16 publications

References 50 publications

Robust Dynamic Epoxy Adhesives with High Environmental Tolerance Enabled by the Coordination of Small-Molecule Coupling Agents with Boroxine

Robust Dynamic Epoxy Adhesives with High Environmental Tolerance Enabled by the Coordination of Small-Molecule Coupling Agents with Boroxine

A strain-reinforcing elastomer adhesive with superior adhesive strength and toughness

Hyperbranched polymer functionalized flexible perovskite solar cells with mechanical robustness and reduced lead leakage

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