Rigid‐Flexible Coupled Dendritic Molecule Doping: General Approach to Activate Commercial Polymers into Harsh Condition‐Tolerant Multi‐Reusable Strong Supramolecular Adhesives DOI

Jie Feng,

Zi-Wei Lin, Yang Zhang

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(45)

Published: July 20, 2024

Abstract Developing functional adhesives combining strong adhesion, good recyclability and diverse harsh‐condition adaptability is a grand challenge. Here, we introduce general dendritic molecule doping strategy to activate commercial polymers into new family of supramolecular integrating high adhesion strength, ultralow temperature, water resistant multi‐reusable properties. Our method involves rational design rigid‐flexible coupled molecule—M 4 C 8 OH as versatile dopant, while simple M can modulate internal external non‐covalent interaction enable H‐bonding enhanced interchain cross‐linking for tough cohesion along with interphase interaction. This endows 20 wt % OH‐doped polycaprolactone (PCL) (PCL‐M OH) improved strength on various substrates the maximum increase up 2.87 times that PCL. In particular, strengths PCL‐M polymethyl methacrylate at 25 °C −196 reach 4.67 3.58 MPa—1.9 2.3 those PCL superior most reported adhesives. also displays markedly‐improved multi‐usability tolerance against temperature wet environments. Mechanism studies reveal crucial role molecular structures toward adhesion. be expanded other polymer matrices, yielding

Language: Английский

Synthesis of Dynamic Polyurethanes by Utilizing Low-Transition-Temperature Mixtures of Pyrogallol and Poly(ethylene glycol) DOI
Huanbo Wang, Yuan Fu, Yue Liu

et al.

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(15), P. 8786 - 8797

Published: July 24, 2024

Dynamic covalent networks exhibit intriguing reprocessing and self-healing properties, but they usually require complex synthesis procedures frequently use hazardous solvents. Herein, we proposed a green strategy for dynamic polyurethane that was conducted in one-pot, solvent-free manner addresses the aforementioned problems. A new type of low-transition-temperature mixture (LTTM) prepared by blending pyrogallol poly(ethylene glycol), which allowed reagents to remain as liquids at room temperature. The formation LTTMs ascribed presence intermolecular hydrogen-bonding van der Waals interactions between molecules two reagents. Self-healing reprocessable with dissociative exchangeable phenol–carbamate bonds synthesized incorporating hexamethylene diisocyanate trimer third component into LTTMs, followed thermal curing. properties could be adjusted modifying content LTTMs. preparation did not any purification steps solvents, provides an innovative approach polymer is efficient environmentally friendly.

Language: Английский

Citations

1
Anti-corrosive, weatherproof and self-healing polyurethane developed from hydrogenated hydroxyl-terminated polybutadiene toward surface-protective applications DOI
Yuanyuan Liu, Xin Du, Hui Wang

et al.

Frontiers of Materials Science, Journal Year: 2022, Volume and Issue: 16(2)

Published: May 5, 2022

Language: Английский

Citations

4
Non-covalently crosslinked networks MXene-doped poly(eutectic) conductive elastomers with antimicrobial, self-healing, tunable mechanical properties, and wide temperature durability DOI

Xiaojuan Zhang,

Jiaqian Guo,

Kexin Yang

et al.

Ceramics International, Journal Year: 2024, Volume and Issue: 50(18), P. 32853 - 32867

Published: June 12, 2024

Language: Английский

Citations

0
Chlorosulfonated Poly(propylene carbonate)-Based Pressure-Sensitive Adhesives with Improved Thermal Stability and Peel Strength DOI
Dongdong Wang, Jiapeng Li, Jing Jin

et al.

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(15), P. 8896 - 8904

Published: July 20, 2024

Language: Английский

Citations

0
Rigid‐Flexible Coupled Dendritic Molecule Doping: General Approach to Activate Commercial Polymers into Harsh Condition‐Tolerant Multi‐Reusable Strong Supramolecular Adhesives DOI

Jie Feng,

Zi-Wei Lin, Yang Zhang

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(45)

Published: July 20, 2024

Abstract Developing functional adhesives combining strong adhesion, good recyclability and diverse harsh‐condition adaptability is a grand challenge. Here, we introduce general dendritic molecule doping strategy to activate commercial polymers into new family of supramolecular integrating high adhesion strength, ultralow temperature, water resistant multi‐reusable properties. Our method involves rational design rigid‐flexible coupled molecule—M 4 C 8 OH as versatile dopant, while simple M can modulate internal external non‐covalent interaction enable H‐bonding enhanced interchain cross‐linking for tough cohesion along with interphase interaction. This endows 20 wt % OH‐doped polycaprolactone (PCL) (PCL‐M OH) improved strength on various substrates the maximum increase up 2.87 times that PCL. In particular, strengths PCL‐M polymethyl methacrylate at 25 °C −196 reach 4.67 3.58 MPa—1.9 2.3 those PCL superior most reported adhesives. also displays markedly‐improved multi‐usability tolerance against temperature wet environments. Mechanism studies reveal crucial role molecular structures toward adhesion. be expanded other polymer matrices, yielding

Language: Английский

Citations

0