Bioinspired nucleobase-containing polyelectrolytes as robust and tunable adhesives by balancing the adhesive and cohesive properties

Dong, Zhi; Wu, Jiang; Shen, Xinyi; Hua, Zan

doi:10.1039/d3sc00697b

Cited by 20 publications

(12 citation statements)

References 47 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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“…Previous studies have also showed that T g and T m decrease with an increase in the length of alkyl chain; thus, P2 exhibited lower T g and T m than P1. [15,16] However, P3 was not inconsistent with the above-mentioned rule, because it was a crystalline solid inherited from its reactant (compound 10), and the DSC results of compound 10 support this explanation (Figure S27). [16] Hence, the alkyl chain moiety can tune the thermomechanical properties of these molecular solids.…”

Section: Resultsmentioning

confidence: 65%

Small Ionic‐Liquid‐Based Molecule Drives Strong Adhesives

Liu,

2024

Angew Chem Int Ed

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Nature has inspired scientists to fabricate adhesive materials for applications in many burgeoning areas. However, it is still a significant challenge to develop small‐molecule adhesives with high‐strength, low‐temperature and recyclable properties, although these merits are of great interest in various aspects. Herein, we report a series of strong adhesives based on low‐molecular‐weight molecular solids driven by the terminal modification of ionic liquids (ILs) and subsequent supramolecular self‐assembly. The emergence of high strength and liquid‐to‐solid transitions for these supramolecular aggregates relies on modifying IL with a high melting point motif and enriching the types of noncovalent interactions in the original ILs. Using this strategy, we demonstrate that our IL‐based molecular solids can efficiently obtain a high adhesion strength (up to 8.95 MPa). Importantly, we elucidate the mechanism underlying the reversible and strong adhesion enabled by monomer‐to‐polymer transitions. These fundamental findings provide guidance for the design of high‐performance supramolecular adhesive materials..

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“…Annealing conditions significantly influence the adhesive strength of bonded samples. 48,49 Given the sensitivity of linear PPA to sonication and elevated temperatures, 50 we chose to employ a solvent-assisted bonding method to retain the polymer composition, while also providing the polymer chains with freedom of motion to form favorable intermolecular interactions with a substrate. We sought to develop a straightforward procedure for bonding substrates with linear PPA that (i) preserved the flexibility and properties of the polymer, (ii) maximized adhesive strength, and (iii) provided evidence regarding the structure–property relationships that contribute to adhesion.…”

Section: Resultsmentioning

confidence: 99%

Functional design of stimuli-responsive poly(phthalaldehyde)-based adhesives: depolymerization kinetics and mechanical strength management through plasticizer addition

Damacet,

Yarbrough,

Blelloch

et al. 2024

Polym. Chem.

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Bioinspired nucleobase-containing polyelectrolytes as robust and tunable adhesives by balancing the adhesive and cohesive properties

Abstract: Supramolecular polymeric adhesives inspired by nature have been strongly pursued by scientists, since they possess strong but dynamic reversible adhesive behaviors concurrently. Optimizing the adhesive and cohesive properties is of...

Cited by 20 publications

References 47 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

Small Ionic‐Liquid‐Based Molecule Drives Strong Adhesives

Functional design of stimuli-responsive poly(phthalaldehyde)-based adhesives: depolymerization kinetics and mechanical strength management through plasticizer addition

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