Journal
POLYMER BULLETIN
Volume 75, Issue 4, Pages 1431-1439Publisher
SPRINGER
DOI: 10.1007/s00289-017-2101-4
Keywords
Graphene oxide; Elasticity; Toughness; Swelling; Acrylamide
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Polyacrylamide (PAAm) hydrogels have been proposed for use as promising biomaterials in biomedical and tissue engineering but their poor mechanical and water-retention properties have hindered their development. Graphene oxide (GO), an excellent nanofiller, was added to PAAm to produce mechanically strong GO-PAAm composites. The free radical crosslinking copolymerization method was used with GO content varying in the range between 5 and 50 A mu l of GO. The mechanical properties of the GO-PAAm composites are measured by compressive test, revealing a decrease in the shear modulus and toughness of the composites above 8 A mu l of GO by increasing GO content.
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