Entropy-Driven Design of Highly Impact-Stiffening Supramolecular Polymer Networks with Salt-Bridge Hydrogen Bonds
Donghua University · State Key Laboratory for Modification of Chemical Fibers and Polymer Materials · +2 more institutions
Abstract
Impact-stiffening materials that undergo a strain rate-induced soft-to-rigid transition hold great promise as soft armors in the protection of the human body and equipment. However, current impact-stiffening materials, such as polyborosiloxanes and shear-thickening fluids, often exhibit a limited impact-stiffening response. Herein, we propose a design strategy for fabricating highly impact-stiffening supramolecular polymer networks by leveraging high-entropy-penalty physical interactions. We synthesized a fully biobased supramolecular polymer comprising poly(α-thioctic acid) and arginine clusters, whose chain dynamics are governed by highly specific guanidinium-carboxylate salt-bridge hydrogen bonds. The…
Citation impact
- FWCI
- 20.00
- Percentile
- 100%
- References
- 52
Authors
4- HQHaiyan Qiao
Donghua University, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- BWBaohu Wu
Forschungszentrum Jülich, Heinz Maier-Leibnitz Zentrum
- SSShengtong SunCorresponding
Donghua University, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- PWPeiyi WuCorresponding
Donghua University, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
Topics & keywords
- Stiffening
- Chemistry
- Hydrogen bond
- Polymer
- Supramolecular chemistry
- Salt bridge
- Nanotechnology
- Composite material