The DOI matches its Crossref record; 48 of the 48 references it cites were found in a registry or an index.
A Fast Room‐Temperature Self‐Healing Glassy Polyurethane
Abstract
We designed and synthesized a colorless transparent glassy polyurethane assembled using low‐molecular‐weight oligomers carrying a large number of loosely packed weak hydrogen bonds (H‐bonds), which has a glass transition temperature (Tg) up to 36.8 °C and behaves unprecedentedly robust stiffness with a tensile Young's modulus of 1.56±0.03 GPa. Fast room‐temperature self‐healing was observed in this polymer network: the broken glassy polyurethane (GPU) specimen can recover to a tensile strength up 7.74±0.76 MPa after healing for as little as 10 min, which is prominent compared to reported room‐temperature self‐healing polymers. The high density of loose‐packed hydrogen bonds can reversibly dissociate/associate below Tg of GPU (that is secondary relaxation), which enables the reconfiguration of the damaged network in the fractured interfaces, despite the extremely slow diffusion dynamics of molecular chains under room temperature. This GPU shows potential application as an optical lens.
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Cites
Optically healable supramolecular polymers
Burnworth, M., Tang, L., Kumpfer, J. R., Duncan, A. J., Beyer, F. L., Fiore, G. L., Rowan, S. J., & Weder, C. (2011) · Nature · doi:10.1038/nature09963 · Cited by 1,778
Self-healing polymeric materials
Yang, Y., & Urban, M. W. (2013) · Chemical Society Reviews · doi:10.1039/c3cs60109a · Cited by 1,444
High-performance vitrimers from commodity thermoplastics through dioxaborolane metathesis
Röttger, M., Domenech, T., van der Weegen, R., Breuillac, A., Nicolaÿ, R., & Leibler, L. (2017) · Science · doi:10.1126/science.aah5281 · Cited by 1,394
Wang, S., & Urban, M. W. (2020) · Nature Reviews Materials · doi:10.1038/s41578-020-0202-4 · Cited by 1,374
Intrinsically stretchable and healable semiconducting polymer for organic transistors
Oh, J. Y., Rondeau-Gagné, S., Chiu, Y.-C., Chortos, A., Lissel, F., Wang, G.-J. N., Schroeder, B. C., Kurosawa, T., Lopez, J., Katsumata, T., et al. (2016) · Nature · doi:10.1038/nature20102 · Cited by 1,349
Self-citationMultiphase design of autonomic self-healing thermoplastic elastomers
Chen, Y., Kushner, A. M., Williams, G. A., & Guan, Z. (2012) · Nature Chemistry · doi:10.1038/nchem.1314 · Cited by 1,232
Mechanically robust, readily repairable polymers via tailored noncovalent cross-linking
Yanagisawa, Y., Nan, Y., Okuro, K., & Aida, T. (2018) · Science · doi:10.1126/science.aam7588 · Cited by 1,073
Superior Toughness and Fast Self‐Healing at Room Temperature Engineered by Transparent Elastomers
Kim, S., Jeon, H., Shin, S., Park, S., Jegal, J., Hwang, S. Y., Oh, D. X., & Park, J. (2018) · Advanced Materials · doi:10.1002/adma.201705145 · Cited by 857
Zhang, Q., Shi, C.-Y., Qu, D.-H., Long, Y.-T., Feringa, B. L., & Tian, H. (2018) · Science Advances · doi:10.1126/sciadv.aat8192 · Cited by 771
DYNAMERS: dynamic polymers as self-healing materials
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Cited by
Zhu, X., Zhang, W., Lu, G., Zhao, H., & Wang, L. (2022) · ACS Nano · doi:10.1021/acsnano.2c06264 · Cited by 279
Metadata
- Authors
- Xu, J., Chen, J., Zhang, Y., Liu, T., & Fu, J.
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2021-03-08
- Volume
- 60
- Issue
- 14
- Pages
- 7947-7955
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W3118595220
- Cited by
- 375
- References
- 48
- FWCI
- 21.53
- Type
- journal article
- Language
- en
- Open access
- closed
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