Journal
APPLIED PHYSICS LETTERS
Volume 105, Issue 15, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4898189
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Funding
- Natural Science Foundation of China [61025002, 11472210, 11372239, 11321062]
- NSF MRSEC [DMR-0820484]
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [1404653] Funding Source: National Science Foundation
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Polyacrylamide hydrogels containing salt as electrolyte have been used as highly stretchable transparent electrodes in flexible electronics, but those hydrogels are easy to dry out due to water evaporation. Targeted, we try to enhance water retention capacity of polyacrylamide hydrogel by introducing highly hydratable salts into the hydrogel. These hydrogels show enhanced water retention capacity in different level. Specially, polyacrylamide hydrogel containing high content of lithium chloride can retain over 70% of its initial water even in environment with relative humidity of only 10% RH. The excellent water retention capacities of these hydrogels will make more applications of hydrogels become possible. (C) 2014 AIP Publishing LLC.
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