NDLI: Structure and properties of self-doped polyaniline

Content Provider	IEEE Xplore Digital Library
Author	Xianhong Wang Ji Li Lixiang Wang Xiabin Jing Fosong Wang
Copyright Year	1994
Description	Author affiliation: Changchun Institute of Applied Chemistry, Academia Sinica (Xianhong Wang)
Abstract	Summary form only given. Sulfonated Polyaniline (SPAn) with various sulfonation degrees (SD) has been synthesized by the reaction of polyaniline and concentrated sulfuric acid using silver sulfate as catalyst. Only when SD of the SPAn is over 45% can it be dissolved in dilute aqueous alkaline solution and display apparent self-doping property. The reversible conversion between SPAn and its ammonium salt, confirmed by in-situ UV-Vis and ESR, is another evidence for the self-doping property of SPAn. From the different self-doping behavior of SPAn and poly (o-aminobenzoic acid), it is concluded that the formation of relatively strong intra-molecular ionic bonds is responsible for the effective self-doping property. 4-Amino-2-sulfonic acid diphenylamine is synthesized through Ullmann condensation, and successfully electropolymerized in H/sub 2/O/CH/sub 3/ CN/Na/sub 2/SO/sub 4/ system. The resulted polymer is a typical alternative compolymer of aniline and m-amino-benzenesulfonic acid. The differences in FTIR spectra and cyclic voltamograms between SPAn and the above alternative copolymer indicate that the sulfonic acid groups are somewhat randomly distributed on the backbone aromatic rings.
Starting Page	334
Ending Page	334
File Size	78193
Page Count	1
File Format	PDF
DOI	10.1109/STSM.1994.835398
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-07-24
Publisher Place	Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Silver Chemistry Paramagnetic resonance Microscopy Laboratories Spine Tunneling Displays Polymers Physics
Content Type	Text
Resource Type	Article

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