Title: PREPARATION AND CONDUCTIVITY OF POLYANILINE/SiO2 COMPOSITES
Page Range: p.605-610
Author(s): Qunwei Tang; Jihuai Wu; Haiyong Ao; Hui Sun; Lin Lin; Jianming Lin
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 15
Issue No: No.8
Abstract
A novel polyaniline/silica composite with a conductivity of 0.26 S/cm was prepared by polymerisation of aniline monomer in the presence of ultrafine silica powder in aqueous solution containing hydrochloric acid as a dopant and ammonium persulphate (APS) as the initiator and oxidant. The reaction conditions were optimised at a mass ratio of SiO”2 to aniline of 20.0, a molar ratio of APS to aniline of 1.0, and a reaction temperature of 25 deg.C for 6 h. The conductivity of the composites remained fairly stable on storage for 50 days. 32 refs.
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