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Giant Dielectric Permittivities in Functionalized Carbon‐Nanotube/ Electroactive‐Polymer Nanocomposites
Author(s) -
Dang Z.M.,
Wang L.,
Yin Y.,
Zhang Q.,
Lei Q.Q.
Publication year - 2007
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200600703
Subject(s) - materials science , carbon nanotube , nanocomposite , percolation threshold , dielectric , polymer , composite material , permittivity , polymer nanocomposite , nanotube , percolation (cognitive psychology) , electrical resistivity and conductivity , optoelectronics , engineering , neuroscience , electrical engineering , biology
Trifluorophenyl‐functionalized multi‐walled‐carbon‐nanotube/poly(vinylidene fluoride) (TFP‐MWNT/PVDF) nanocomposites are fabricated by employing a wet‐chemistry route. The modified MWNTs are observed to form a well‐dispersed, structurally random nanophase within the polymer matrix (see figure). The TFP‐MWNT/PVDF nanocomposite exhibits enhanced dielectric permittivity when the content of TFP‐MWNT is close to the percolation threshold.