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Mechanical properties of graphene films enhanced by homo-telechelic functionalized polymer fillers via π-π Stacking interactions

Zhang, Jizhen, Xu, Yuanhong, Cui, Liang, Fu, Aiping, Yang, Wenrong, Barrow, Colin and Liu, Jingquan 2015, Mechanical properties of graphene films enhanced by homo-telechelic functionalized polymer fillers via π-π Stacking interactions, Composites Part A: Applied Science and Manufacturing, vol. 71, pp. 1-8, doi: 10.1016/j.compositesa.2014.12.013.

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Title Mechanical properties of graphene films enhanced by homo-telechelic functionalized polymer fillers via π-π Stacking interactions
Author(s) Zhang, Jizhen
Xu, Yuanhong
Cui, Liang
Fu, Aiping
Yang, WenrongORCID iD for Yang, Wenrong orcid.org/0000-0001-8815-1951
Barrow, ColinORCID iD for Barrow, Colin orcid.org/0000-0002-2153-7267
Liu, Jingquan
Journal name Composites Part A: Applied Science and Manufacturing
Volume number 71
Start page 1
End page 8
Total pages 8
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2015-01-01
ISSN 1359-835X
Keyword(s) Science & Technology
Technology
Engineering, Manufacturing
Materials Science, Composites
Engineering
Materials Science
Layered structures
Thin films
Mechanical properties
Assembly
OXIDE/EPOXY COMPOSITES
CARBON NANOTUBES
OXIDE PAPER
SHEETS
NANOCOMPOSITES
REDUCTION
GRAPHITE
COVALENT
CONDUCTIVITY
POLYSTYRENE
Summary © 2015 Elsevier Ltd. All rights reserved. Most researches on graphene/polymer composites are focusing on improving the mechanical and electrical properties of polymers at low graphene content instead of paying attention to constructing graphene's macroscopic structures. In current study the homo-telechelic functionalized polyethylene glycols (FPEGs) were tailored with π-orbital-rich groups (namely phenyl, pyrene and di-pyrene) via esterification reactions, which enhanced the interaction between polyethylene glycol (PEG) molecules and chemical reduced graphene oxide (RGO) sheets. The π-π stacking interactions between graphene sheets and π-orbital-rich groups endowed the composite films with enhanced tensile strength and tunable electrical conductivity. The formation of graphene network structure mediated by the FPEGs fillers via π-π stacking non-covalent interactions should account for the experimental results. The experimental investigations were also complemented with theoretical calculation using a density functional theory. Atomic force microscope (AFM), scanning electron microscope (SEM), X-ray diffraction (XRD), nuclear magnetic resonance (NMR), thermal gravimetric analysis (TGA), UV-vis and fluorescence spectroscopy were used to monitor the step-wise preparation of graphene composite films.
Language eng
DOI 10.1016/j.compositesa.2014.12.013
Field of Research 030302 Nanochemistry and Supramolecular Chemistry
0912 Materials Engineering
0913 Mechanical Engineering
0901 Aerospace Engineering
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30069485

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