Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 5, Issue 21, Pages 10418-10422Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am403966x
Keywords
alginate/polyacrylamide hydrogel; various multivalent cations; strength; stretchability; toughness; vibration
Funding
- Natural Science Foundation of China [51073127, 51173144, 11072185, 11372239]
- Research Fund for the Doctoral Program of Higher Education of China [201110040]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
- NSF MRSEC [DMR-0820484]
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We successfully synthesized a family of alginate/polyacrylamide hydrogels using various multivalent cations. These hydrogels exhibit exceptional mechanical properties. In particular, we discovered that the hydrogels cross-linked by trivalent cations are much stronger than those cross-linked by divalent cations. We demonstrate stretchability and toughness of the hydrogels by inflating a hydrogel sheet into a large balloon, and the elasticity by using a hydrogel block as a vibration isolator in a forced vibration test. The excellent mechanical properties of these hydrogels may open up applications for hydrogels.
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