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240114s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202312906
|2 doi
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|a eng
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1 |
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|a Ou, Xu
|e verfasserin
|4 aut
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1 |
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|a High-Toughness CO2-Sourced Ionic Polyurea Adhesives
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|c 2024
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 18.04.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2024 Wiley‐VCH GmbH.
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|a Polyurea (PUa) adhesives are renowned for their exceptional adhesion to diverse substrates even in harsh environments. However, the presence of quadruple bidentate intermolecular hydrogen bonds in the polymer chains creates a trade-off between cohesive energy and interfacial adhesive energy. To overcome this challenge, a series of CO2-sourced ionic PUa adhesives with ultratough adhesion to various substrates are developed. The incorporated ionic segments within the adhesive serve to partially mitigate the intermolecular hydrogen bonding interactions while conferring unique electrostatic interactions, leading to both high cohesive energy and interfacial adhesive energy. The maximum adhesive strength of 10.9 MPa can be attained by ionizing the CO2-sourced PUa using bromopropane and subsequently exchanging the anion with lithium bis(trifluoromethylsulfonyl)imide. Additionally, these ionic PUa adhesives demonstrate several desirable properties such as low-temperature stability (-80 °C), resistance to organic solvents and water, high flame retardancy, antibacterial activity, and UV-fluorescence, thereby expanding their potential applications. This study presents a general and effective approach for designing high-strength adhesives suitable for a wide array of uses
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|a Journal Article
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|a CO2
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|a adhesive
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|a ionic polymer
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| 650 |
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4 |
|a polyurea
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| 700 |
1 |
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|a Pan, Ji
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Qinbo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Niu, Yajuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhou, Yingjie
|e verfasserin
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| 700 |
1 |
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|a Yan, Feng
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 16 vom: 19. Apr., Seite e2312906
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
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|g volume:36
|g year:2024
|g number:16
|g day:19
|g month:04
|g pages:e2312906
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|u http://dx.doi.org/10.1002/adma.202312906
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