Journal
CHEMISTRY-AN ASIAN JOURNAL
Volume 10, Issue 11, Pages 2352-2355Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201500704
Keywords
gold nanoparticles; hybrid; self-healing; stiffness enhancement; supramolecular polymeric hydrogels
Categories
Funding
- NSFC [21421004, 21476075, 21272072]
- National Basic Research 973 Program
- Shanghai Pujiang Program [13PJD011]
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A hybrid supramolecular polymeric hydrogel is conveniently constructed via host-guest interaction of a host cyclodextrin polymer (poly-CD) with a guest -bromonaphthalene polymer (poly-BrNp) and mixing with 6-thio--cyclodextrin (-SH-CD) modified gold nanoparticles (GPCDs) in aqueous solution. According to the dynamic oscillatory data, the hydrogel exhibits markedly enhanced stiffness compared with the GPCD-free one (both G and G values are almost twice as high as those of the original GPCD-free hydrogel) due to the introduction of the inorganic gold nanoparticles. This hybrid supramolecular polymeric hydrogel has a rapid and excellent self-healing property (only about 1min, and the G and G of the self-healed hydrogel almost turned back to their original levels after 1 hour) in air (without adding any solvent or additive).
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