Chemical modification of graphene oxide through poly(ethylene oxide)-conjugations

Abu Bakkar Siddique, Jin Wook An, Hyun Jun Kim, Hyeonjong Park, Geon Chang Lee, Jae Yeol Lee, Sehoon Kim, Minhoo Byeon, Chong Rae Park, Jungahn Kim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This paper introduces poly(ethylene oxide) (PEO)-based modification of graphene oxide (GO) layers through the grafting onto the surface of GO as one of the excellent tools to improve the solubility and the processing ability of graphene. Methylene blue (MB)-mediated intercalation of graphite (flake) was first performed at 25 °C in aqueous media, followed by the Hummers’ process for oxidation, leading to an efficient production of GO. Direct oxidation of graphite (powder) also yielded the corresponding GO. The reaction of neutralized GO with “living” PEOs synthesized from alkyllithium- or sodium azide-initiated polymerization of ethylene oxide (EO) in polar solvents led to the production of the corresponding graphene oxide-g-PEOs soluble in different solvents such as tetrahydrofuran (THF), methanol, dimethyl sulfoxide (DMSO), and H 2 O, etc. The resulting products were characterized by the combination of size exclusion chromatographic, 1 H nuclear magnetic resonance ( 1 H NMR), Raman, thermogravimetric anlysis (TGA), transmission electron microscopy (TEM), and atomic force microscopy (AFM) analyses. [Figure not available: see fulltext.].

Original languageEnglish
Pages (from-to)452-460
Number of pages9
JournalMacromolecular Research
Volume25
Issue number5
DOIs
Publication statusPublished - 2017 May 1
Externally publishedYes

Fingerprint

Graphite
Chemical modification
Polyethylene oxides
Oxides
Graphene
Oxidation
Dimethyl sulfoxide
Intercalation
Ethylene Oxide
Sodium Azide
Methylene Blue
Atomic force microscopy
Ethylene
Methanol
Dimethyl Sulfoxide
Solubility
Polymerization
Sodium
Powders
Nuclear magnetic resonance

Keywords

  • graphene oxide-g-PEO
  • graphene oxide-g-PEO-N
  • living anionic ring-opening polymerization
  • methylene blue-mediated intercalation
  • soluble graphene oxides

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Siddique, A. B., An, J. W., Kim, H. J., Park, H., Lee, G. C., Lee, J. Y., ... Kim, J. (2017). Chemical modification of graphene oxide through poly(ethylene oxide)-conjugations. Macromolecular Research, 25(5), 452-460. https://doi.org/10.1007/s13233-017-5069-x

Chemical modification of graphene oxide through poly(ethylene oxide)-conjugations. / Siddique, Abu Bakkar; An, Jin Wook; Kim, Hyun Jun; Park, Hyeonjong; Lee, Geon Chang; Lee, Jae Yeol; Kim, Sehoon; Byeon, Minhoo; Park, Chong Rae; Kim, Jungahn.

In: Macromolecular Research, Vol. 25, No. 5, 01.05.2017, p. 452-460.

Research output: Contribution to journalArticle

Siddique, AB, An, JW, Kim, HJ, Park, H, Lee, GC, Lee, JY, Kim, S, Byeon, M, Park, CR & Kim, J 2017, 'Chemical modification of graphene oxide through poly(ethylene oxide)-conjugations', Macromolecular Research, vol. 25, no. 5, pp. 452-460. https://doi.org/10.1007/s13233-017-5069-x
Siddique, Abu Bakkar ; An, Jin Wook ; Kim, Hyun Jun ; Park, Hyeonjong ; Lee, Geon Chang ; Lee, Jae Yeol ; Kim, Sehoon ; Byeon, Minhoo ; Park, Chong Rae ; Kim, Jungahn. / Chemical modification of graphene oxide through poly(ethylene oxide)-conjugations. In: Macromolecular Research. 2017 ; Vol. 25, No. 5. pp. 452-460.
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