Method for preparing polyaniline nano thread

Abstract

A preparation method of polyaniline nanometer line relates to a polymeric material, supplying a preparation method of polyaniline nanometer line based on the polymerization on suspended interface, the method is of gentle reaction conditions, high efficiency, and suitable for industrial production. A acidic aqueous solution containing 1mol / L hydrion concentration is added into a container to do external phase before water soluble dispersing agent is fed into and the water soluble dispersing agent concentration is 1 to 2 g / L in the terminal system; organic solution containing 0.1 to 1 mol / L aniline monomer is added into the acidic aqueous solution, then an acidic aqueous solution with the same mole of oxidant as aniline is added into the aqueous solution under the reaction temperature from 0 DEG C to room temperature, and the volume ration between organic phase and the acidic aqueous solution is 1 / 20 to 1 / 5; the product is filtrated after 2 to 48 hours of reaction, then the filtration is washed to neutral by distilled water, and washed with alcohol until the filtration is colorless and transparent; the product is baked under 40 to 60 DEG C, finally the polyaniline nanometer line with diameters between 40 to 90 nm is acquired.

Description

technical field

[0001] The invention relates to a polymer material, in particular to a method for preparing conductive polyaniline nanowires. Background technique

[0002] Conductive polyaniline has become one of the most commercially promising conductive polymers due to its excellent environmental stability, thermal stability and doping reversibility, and its ease of synthesis (Zhang D.H., Wang Y.Y., MAT.SCI.E.B, 2006, 134(1):9-19). Due to the nanoscale structure of polyaniline nanomaterials, it has the small size effect and quantum effect that traditional conductive polymerization does not have, endowing it with specific physical and chemical properties. For example, using polyaniline nanowires with a larger specific surface than traditional polyaniline, the sensor material made of it is tens of times more sensitive to ammonia in the environment than traditional sensors (Virji S., Huang J., Kaner R.B., Weiller B.H., NANO LETT., 2004, 4(3):491-496). Polyaniline nanowires...

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