Anodic synthesis of sulfur‐bridged polyaniline coatings onto Fe sheets | Zendy

Mengoli Giuliano | Zendy; Musiani Marco M. | Zendy; Pelli Beatrice | Zendy; Vecchi Enrico | Zendy

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Anodic synthesis of sulfur‐bridged polyaniline coatings onto Fe sheets

Author(s) -

Mengoli Giuliano,

Musiani Marco M.,

Pelli Beatrice,

Vecchi Enrico

Publication year - 1983

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.1983.070280318

Subject(s) - polyaniline , aniline , sulfur , polymer chemistry , sulfide , coating , polymerization , materials science , anode , polymer , conductive polymer , azobenzene , polysulfide , ammonium persulfate , electrochemistry , chemistry , inorganic chemistry , organic chemistry , electrode , electrolyte

Sulfur‐bridged polyaniline coatings are obtained onto Fe anodes by electrolyzing a basic solution of one aniline and ammonium sulfide. Their sulfur content ranges from 7% to 17%, depending on the substituents on aniline. Variously substituted anilines may be polymerized in this way and coating pollution by azobenzene formed in a side reaction is almost completely avoided. Sulfur probably enters the polymer chains through a free radical mechanism. HS • intermediates being formed by both homogeneous and anodic oxidation of HS − anions. Coatings from N ‐allylaniline, being thermally curable, show satisfactory physical properties.

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