Premium
Structure and electrically conductive properties of porous PAN‐based nanocomposites prepared by Pickering emulsion template method
Author(s) -
Wang Baichen,
Dou Shuo,
Gao Yu,
Li Wei
Publication year - 2020
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.49017
Subject(s) - materials science , pickering emulsion , polyacrylonitrile , nanocomposite , graphene , carbon nanotube , chemical engineering , stabilizer (aeronautics) , x ray photoelectron spectroscopy , conductivity , contact angle , carbon fibers , oxide , emulsion polymerization , composite material , polymerization , polymer chemistry , polymer , nanoparticle , nanotechnology , composite number , chemistry , mechanical engineering , engineering , metallurgy
A carbon nanohybrid Pickering stabilizer was synthesized by the hydrothermal reaction of 2‐ethyl‐4‐methylimidazole (EMI), graphene oxide (GO), and carbon nanotubes (CNTs). A water‐in‐oil (w/o) type Pickering emulsion was achieved using the mixed carbon nanohybrids/Span 80 to form a porous and conductive polyacrylonitrile (PAN) nanocomposites after polymerization. Contact angle and X‐ray photoelectron spectroscopy (XPS) results show that the carbon nanohybrid stabilizer is amphiphilic. The effects of the composition and concentration of stabilizers were investigated. When the concentration of the carbon nanohybrid stabilizer is 4 mg ml −1 , the conductivity of the resulting material is 2.31 × 10 −9 S m −1 , which is six orders of magnitude higher than that of porous PAN composites without carbon nanohybrid stabilizer. At the mass ratio of 6GO:1CNTs, the conductivity of porous PAN‐based composites reaches 2.47 × 10 −8 S m −1 . The significantly increased conductivity is the evidence for the three dimensional conductive network constructed by carbon nanohybrid stabilizer at the oil/water interface.