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A study of crystallisation of poly (ethylene oxide) and polypropylene on graphene surface

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posted on 19.08.2015 by Yao Tong, Yue Lin, Shanda Wang, Mo Song
Crystallisation behaviour of poly (ethylene oxide) (PEO) and isotactic polypropylene (iPP) on graphene surface was investigated by means of polarized microscopy, wide angle X-ray diffraction (WAXD), and Raman techniques. Results indicated that graphene influences the crystallisation and crystal structure of iPP and PEO. WAXD peaks shifting toward lower diffraction angle, i.e. increase in d-pacing, was observed in both PEO and iPP crystallised on the surface of graphene. The change of d-spacing of both PEO and iPP could result from the compressive stress caused by graphene. A shift of 2D band in graphene was observed from Raman spectra. The Raman spectra indicated the big shift in the 2D band is due to the presence of stress induced strain in the polymer attached graphene. The residual stress was generated during crystallization of the polymers on the surface of graphene. Due to the interactions between the graphene and the polymers, the stress was transferred to the graphene which leads to a strain of the graphene. Raman spectra proved the presence of stress generated by the crystallization of the polymers on the surface of graphene.

Funding

EPSRC [grant number: EP/P505011]

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Materials

Published in

Polymer

Citation

TONG, Y. et al., 2015. A study of crystallisation of poly (ethylene oxide) and polypropylene on graphene surface. Polymer, 73, pp.52–61.

Publisher

© The Authors. Published by Elsevier Ltd.

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/ by/4.0/

Publication date

2015

Notes

This is an open access article published by Elsevier under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

ISSN

0032-3861

Language

en

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