Piao, Y., Wu, T. and Chen, B. (2016) One-Step Synthesis of Graphene Oxide-Polyamidoamine Dendrimer Nanocomposite Hydrogels by Self-Assembly. Industrial and Engineering Chemistry Research, 55 (21). pp. 6113-6121. ISSN 0888-5885
Abstract
Graphene oxide (GO)-polyamidoamine (PAMAM) dendrimer nanocomposite hydrogels were prepared through a one-step synthesis by mixing a GO suspension and a PAMAM solution at varying ratios of GO to PAMAM. The materials self-assembled into physically cross-linked networks, mainly driven by electrostatic interactions between the oppositely charged GO nanosheets and PAMAM dendrimer. The chemical structure of PAMAM dendrimer was studied by mass spectrometry, nuclear magnetic resonance spectroscopy, and potentiometric titration. The structure and properties of GO-PAMAM nanocomposite hydrogels were investigated by Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction, scanning electron microscopy, and rheometry. The nanocomposite hydrogels exhibited a relatively high mechanical performance with a storage modulus of up to 284 kPa, as well as self-healing property, owing to their reversible and multiple physical cross-links. These hydrogels may be further developed for biomedical applications.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 American Chemical Society. This is an author produced version of a paper subsequently published in Industrial and Engineering Chemistry Research. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 08 Jul 2016 10:14 |
Last Modified: | 01 Jul 2017 06:04 |
Published Version: | https://dx.doi.org/10.1021/acs.iecr.6b00947 |
Status: | Published |
Publisher: | American Chemical Society |
Identification Number: | 10.1021/acs.iecr.6b00947 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:102189 |