1 research outputs found
Conductivity Enhancement of Poly(3,4-ethylenedioxythiophene)/Lignosulfonate Acid Complexes via Pickering Emulsion Polymerization
PolyÂ(3,4-ethylenedioxythiophene)/lignosulfonate
acid (PEDOT/LS)
submicron particles are doped into a 3,4-ethylenedioxythiophene (EDOT)/water
mixture as a solid stabilizer to form a Pickering emulsion. The conductivity
of the new PEDOT/LS complexes prepared by Pickering emulsion polymerization
(PEDOT/LS-PEP) is improved by 2 orders of magnitude. The structure
and properties of PEDOT/LS-PEP are investigated by UV, FTIR, XRD,
XPS, DLS, optical microscope, four point probe meter, and surface
resistance tester. The results show that the average particle size
increases from 550 nm to 2.4 μm, and the PEDOT content in PEDOT/LS-PEP
is 3.5 times that in the original PEDOT/LS submicron particles, while
the structure of PEDOT/LS-PEP remains amorphous. Due to the enhancement
in conductivity, the coating film made by PEDOT/LS-PEP decreases the
surface resistance of glass from 10<sup>12</sup> to 10<sup>6</sup> Ω sq<sup>–1</sup>. These new PEDOT/LS-PEP complexes
meet the requirement of industrial antistatic materials well