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A facile method to prepare polyaniline hollow microsphere was developed using potassium hexacyanoferrate (III) as oxidant for polymerization of aniline in aqueous condition without acid or alkali or organic solvent, and doped polyaniline with electrical conductivity of Ca. 10 −3 S/cm was directly obtained with hexacyanoferrate (II) anion surrounding imine and amine atoms in polyaniline backbone,...
Water-borne conducting polyaniline (cPANI) films were prepared using phosphonic acids containing different numbers of (m) repeating –CH 2 CH 2 O– units (m = 1–16) as dopants, and the influence of phase transition on the electrical conductivity of these cPANI films was investigated. The influence of the side chain length of the dopant on the chain packing of cPANI was found to be highly...
Aqueous conducting polyaniline dispersion was prepared employing acidic phosphate ester bearing hydrophilic ethylene glycol segment as dopant, and conducting film with electrical conductivity of 25S/cm was obtained from the dispersion. Ordered self-assembly lamellar structure with interlamellar distance of 1.2nm was observed in the film, which consisted of alternating layers of rigid polyaniline chain...
In order to improve the mechanical performance and water resistance of water-borne conducting polyaniline film, conducting polyaniline/polyurethane–silica hybrid film was prepared in aqueous solution employing silanol-terminated polyurethane and methyltriethoxysilane as sol–gel precursors. The hybrid film showed surface resistivity of 10 8 Ω even though the conducting polyaniline loading was...
Poly(propylene carbonate) (PPC) with number average molecular weight (M n ) higher than 200kg/mol was prepared via the terpolymerization of carbon dioxide, propylene oxide and diepoxide using Y(CCl 3 OO) 3 –ZnEt 2 –glycerine coordination catalyst. When equimolar ZnEt 2 and diepoxide were used, double propagation active species were generated in situ by nucleophilic...
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