Journal
ACS MACRO LETTERS
Volume 3, Issue 5, Pages 496-500Publisher
AMER CHEMICAL SOC
DOI: 10.1021/mz500221j
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Funding
- Natural Science Foundation of China [51103172, 212101064]
- Hundred Talents Program of the Chinese Academy of Sciences
- Zhejiang Natural Science Foundation of China [LR13B040001]
- Zhejiang Nonprofit Technology Applied Research Program [2013C33190]
- Program for Ningbo Innovative Research Team [2012B82019]
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Vinyl-functionalized thermosensitive Pluronic F127 micelles have been used as multifunctional cross-links for the synthesis of super tough, highly resilient and thermoresponsive nanomicelle (NM) hydrogels. Pluronic F127 diacrylate (F127DA) with vinyl groups on both ends self-assembled in aqueous solution into micelles. Such micelles served as multifunctional macro-cross-links to copolymerize with acrylamide (AAm) monomers, generating novel NM hydrogels with extraordinary tensile and compressive properties, without using any chemical cross-linkers. Uniaxial tensile tests demonstrated a fracture strain above 2265%, an ultimate stress of 276 kPa, and a fracture energy of 2.34 MJ/m(3). Under compression tests, these hydrogels did not fracture up to 98% strain and 62 MPa stress. Cyclic compressive loading unloading tests at 90% strain showed no decay of the hyseteresis energy, indicating an unprecedented fatigue resistance.
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