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Simple route for the preparation of graphene/poly(styrene‐ b ‐butadiene‐ b ‐styrene) nanocomposite films with enhanced electrical conductivity and hydrophobicity
Author(s) -
Kepić Dejan P,
Ristić Ivan S,
MarinovićCincović Milena T,
Peruško Davor B,
Špitálsky Zdenko,
Pavlović Vladimir B,
Budimir Milica D,
Šiffalovič Peter,
Dramićanin Miroslav D,
Mičušík Matej,
Kleinová Angela,
Janigová Ivica,
Marković Zoran M,
Todorović Marković Biljana M
Publication year - 2018
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.5620
Subject(s) - graphene , materials science , nanocomposite , raman spectroscopy , x ray photoelectron spectroscopy , fourier transform infrared spectroscopy , styrene , chemical engineering , graphene foam , graphene oxide paper , surface roughness , composite material , polymer , nanotechnology , copolymer , optics , physics , engineering
This paper reports a simple route for the preparation of graphene/poly(styrene‐ b ‐butadiene‐ b ‐styrene) (SBS) nanocomposite films employing a vacuum filtration method. Graphene is exfoliated well by an electrochemical procedure and homogeneously dispersed in the polymer matrix. The prepared nanocomposite films were characterized by XRD, Fourier transform IR (FTIR) spectroscopy, X‐ray photoelectron spectroscopy (XPS), Raman spectroscopy, AFM and SEM. Morphological studies showed that graphene formed a smooth coating over the surface of SBS. The increase in graphene concentration induces the wrinkling of graphene sheets at the composite surface which causes a further increase in surface roughness. The FTIR, Raman and XPS spectra of graphene/SBS nanocomposite films indicate the strong interactions between graphene and the polymer matrix. According to the XRD patterns, introducing SBS into graphene did not modify the graphene structure additionally, i.e. the crystal lattice parameters do not depend on SBS content in graphene/SBS nanocomposite films. The graphene/SBS nanocomposite films also exhibited better hydrophobicity due to the increased surface roughness and lower sheet resistivity (reduced 10 times) compared to exfoliated graphene. © 2018 Society of Chemical Industry