Vapour phase polymerisation of pyrrole induced by iron(III) alkylbenzenesulfonate salt oxidising agents

Priya Subramanian, Noel B. Clark, Leone Spiccia*, Douglas R. MacFarlane, Bjorn Winther Jensen, Craig Forsyth


研究成果: Article査読

29 被引用数 (Scopus)


A series of iron(III) alkylbenzenesulfonate (ABS) salts were prepared by the reaction of ferric hydroxide, Fe(OH)3·xH2O, with a variety of aromatic sulfonic acids. The products were characterised by microanalysis and FTIR spectroscopy. The microanalysis data generated indicated that three of the salts were not mononuclear iron(III) compounds and were of the formula [(OH2)5Fe-O-Fe(OH2)5][C2H5C6H4SO3]4, [(OH2)5Fe-O-Fe(OH2)5][CH3C6H4SO3]4·2H2O and [(OH2)5Fe-O-Fe(OH2)5][CH3C6H4SO3]4. Some degree of condensation or cross-linking of Fe(III) centres into hydrolytic oligomers had occurred. The X-ray crystal structure of the Fe(III) toluenesulfonate salt established the formula of an oxo-centred, binuclear complex [(H2O)5Fe(μ-O)Fe(OH2)5]4+. Vapour phase polymerisation (VPP) of pyrrole monomer was carried out using iron(III) benzenesulfonate, p-ethylbenzenesulfonate, dodecylbenzenesulfonate and p-toluenesulfonate. As the chain length of the Fe(III) alkylbenzenesulfonates increased it was found that the film forming ability of the polypyrrole was enhanced, probably as a result of a decrease in polymer chain interaction resulting from increased free volume between polymer chains. Variations in the conductivity of the polypyrrole films was observed when Fe(III) p-toluenesulfonate salts obtained from different sources (two commercial samples and one synthesised in our laboratories) were used as the oxidant. Films deposited using these oxidants generally exhibited higher conductivity than those formed using the Fe(III) p-ethylbenzenesulfonate and Fe(III) p-dodecylbenzenesulfonate salts. Crown

ジャーナルSynthetic Metals
出版ステータスPublished - 2008 10月

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 材料化学
  • ポリマーおよびプラスチック


「Vapour phase polymerisation of pyrrole induced by iron(III) alkylbenzenesulfonate salt oxidising agents」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。