Cited by 208Polymer composites and self-healingAdvanced Polymer Synthesis and CharacterizationEpoxy Resin Curing Processes

Mechanically Robust, Self‐Healable, and Highly Stretchable “Living” Crosslinked Polyurethane Based on a Reversible CC Bond

Zhang, Ze Ping, Rong, Min Zhi, Zhang, Ming Qiu·2018·Advanced Functional Materials

Abstract

Stimuli‐responsive polymers built by reversible covalent bonds used to possess unbalanced mechanical properties. Here, a crosslinked polyurethane containing aromatic pinacol as a novel reversible CC bond provider is synthesized, whose tensile strength and failure strain are tunable from 27.3 MPa to as high as 115.2 MPa and from 324% to 1501%, respectively, owing to the relatively high bond energy of the CC bond of pinacol as well as the hydrogen bond between hard segments and semicrystalline soft segments. Moreover, the dynamic equilibrium of pinacol enables self‐healing and recycling of the polymer. Interestingly, the dynamic exchange among macromolecules, for the first time, successfully cooperates with solid‐state drawing that applies to thermoplastics, realizing strengthening of thermoset. Meanwhile, the radicals derived from homolysis of pinacol can repeatedly initiate polymerization of vinyl monomers. The fruitful outcomes of this work may create a series of promising new techniques.

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Crossref · 10.1002/adfm.201706050

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45 of 45 references verified0 citation errors · 0 not checkable

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Authors
Zhang, Z. P., Rong, M. Z., & Zhang, M. Q.
Affiliations
Sun Yat-sen University (CN)
Corresponding author
  • Rong, Min Zhi
  • Zhang, Ming Qiu
Venue
Advanced Functional Materials
Publisher
Wiley
Published
2018-01-16
Volume
28
Issue
11
ISSN
  • 1616-301X (ISSN-L)
  • 1616-3028
OpenAlex
W2783944931
Cited by
208
References
46
Citations by year
2026: 7 · 2025: 11 · 2024: 15 · 2023: 28 · 2022: 34 · 2021: 23 · 2020: 41 · 2019: 34 · 2018: 15
FWCI
14.10
Type
journal article
Language
en
Open access
closed
Locations
Advanced Functional Materials (publishedVersion)
Funders
National Natural Science Foundation of China (51673219, 51333008)
Topics
  • Physical Sciences › Materials Science › Polymers and Plastics › Polymer composites and self-healing
  • Physical Sciences › Chemistry › Organic Chemistry › Advanced Polymer Synthesis and Characterization
  • Physical Sciences › Engineering › Mechanical Engineering › Epoxy Resin Curing Processes
Keywords
crosslinked polyurethane, pinacol, self-healing polymers, stimuli-responsive polymers, stretchable polymers, mechanical properties, hydrogen bonding, solid-state drawing, radical polymerization, vinyl polymerization, polymer recycling

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