Study of polymeric nanocomposites prepared by inserting graphene and / or Ag, Au and ZnO nanoparticles in a TEGDA polymer matrix, by means of the use of dielectric spectroscopy | Zendy

Valeria Alzari | Zendy; Daniele Nuvoli | Zendy; Vanna Sanna | Zendy; T. Caruso | Zendy; Salvatore Marino | Zendy; N. Scaramuzza | Zendy

Open Access

Study of polymeric nanocomposites prepared by inserting graphene and / or Ag, Au and ZnO nanoparticles in a TEGDA polymer matrix, by means of the use of dielectric spectroscopy

Author(s) -

Valeria Alzari,

Daniele Nuvoli,

Vanna Sanna,

T. Caruso,

Salvatore Marino,

N. Scaramuzza

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4943672

Subject(s) - nanocomposite , materials science , graphene , dielectric spectroscopy , dielectric , nanoparticle , polymer , relaxation (psychology) , polymer nanocomposite , composite material , conductivity , chemical engineering , polymer chemistry , electrochemistry , nanotechnology , electrode , chemistry , optoelectronics , engineering , psychology , social psychology

Polymeric nanocomposites were prepared by inserting graphene and/or Ag, Au and ZnO nanoparticles in a TEGDA (tetraethyleneglycol diacrylate) polymer matrix. The polymeric films were characterized in terms of their dielectric properties by electrochemical impedance spectroscopy. The impedance data were fitted by generalized relaxation functions in order to determine conductivity, dielectric response and molecular relaxation time of the nanocomposite films. In particular, a stretched exponential function, Kohlrausch-Williams-Watts function (KWW), was used to investigate polymer/graphene/metal nanocomposites

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