Mechanical properties of graphene oxide–polyacrylamide composites before and after swelling in water

Mechanical properties of graphene oxide–polyacrylamide composites before and after swelling in... 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 µl 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 µl of GO by increasing GO content. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Polymer Bulletin Springer Journals

Mechanical properties of graphene oxide–polyacrylamide composites before and after swelling in water

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Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2017 by Springer-Verlag GmbH Germany
Subject
Chemistry; Polymer Sciences; Soft and Granular Matter, Complex Fluids and Microfluidics; Characterization and Evaluation of Materials; Physical Chemistry; Organic Chemistry
ISSN
0170-0839
eISSN
1436-2449
D.O.I.
10.1007/s00289-017-2101-4
Publisher site
See Article on Publisher Site

Abstract

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 µl 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 µl of GO by increasing GO content.

Journal

Polymer BulletinSpringer Journals

Published: Jun 22, 2017

References

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