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Yin Z.,Guangxi Key Laboratory of Petrochemical Resources Processing | Zhang T.,Guangxi Key Laboratory of Petrochemical Resources Processing | Lu Z.,China Antimony Technology Co. | Tong Z.,Guangxi Key Laboratory of Petrochemical Resources Processing | And 3 more authors.
Speciality Petrochemicals | Year: 2014

Doped polyaniline was prepared by peroxysulphate oxypolymerization method with aniline as monomer and polyphosphoric acid as doping acid. Orthogonal test-schema with L25(56) was adopted arid effects on doped polyaniline yield and electric conductivity were explored. Property and structure were characterized by FT-IR, TEM, SEM and TG. The result shows that the optimum conditions for producing doped polyaniline are as that reaction temperature is 15 °C , molar ratio of ammonium per-sulfate and aniline is 1:1, molar ratio of polyphosphoric acid and aniline is 2:1, reaction time is 2 h, time for feeding ammonium persulfate is 60 min and the initial reaction density of polyphosphoric acid is 1. 5 mol/L. With excellent electrical conductivity and heat stability, structure of doped polyaniline is manifested as nano-fiber and its form is presented as loose flocculation which is somewhat similar to cotton. Source

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