Double-crosslinked network design for self-healing, highly stretchable and resilient polymer hydrogels

Content Provider	Semantic Scholar
Author	Lin, Yinlei He, Deliu Chen, Zhifeng Wang, Liying Li, Guangji
Copyright Year	2016
Abstract	Hydrophobic stearyl methacrylate (C18) was captured into sodium dodecyl sulfate (SDS) micelles and self-assembled nanoparticles of an amphiphilic polyurethane macromonomer PU–HEMA were prepared, and they were used as a physical crosslinker and a multifunctional covalent crosslinker, respectively. A reaction system containing acrylamide (AM), the C18 in the micelles and the self-assembled PU–HEMA nanoparticles was designed for constructing chemically and physically double-crosslinked network (CPDN) hydrogels. The prepared CPDN hydrogels have a tensile elongation at break of at least 1400% and can rapidly and fully recover their original shapes in compression experiments, exhibiting superior stretchability and resilience. In addition, the CPDN hydrogels possess a remarkable self-healing behavior and strong self-healing ability even at ambient temperature without the need for any stimulus or healing agent. The novel strategy developed in this study to construct highly stretchable, resilient and self-healing polymer hydrogels is simple yet extremely versatile, thereby opening up a new avenue for the construction of desired functional CPDN hydrogels with excellent mechanical properties.
Starting Page	12479
Ending Page	12485
Page Count	7
File Format	PDF HTM / HTML
DOI	10.1039/C5RA26770F
Volume Number	6
Alternate Webpage(s)	http://www.rsc.org/suppdata/c5/ra/c5ra26770f/c5ra26770f1.pdf
Alternate Webpage(s)	https://doi.org/10.1039/C5RA26770F
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article