Polyaniline oligomers; Synthesis and characterisation

Rebourt, E; Joule, JA; Monkman, AP

Abstract

Several poly(p-aniline) leucoemeraldine base oligomers were characterised by C-13 NMR spectroscopy. The uncapped trimer and tetramer were obtained by a new method involving a coupling step with copper as a catalyst in DMF. The phenylcapped tetramer, hexamer and octamer were obtained via the ''modified Honzl route''. The leucoemeraldine base phenylcapped tetramer has been oxidised to its emeraldine base form by silver (I) oxide in THF. The formation of two structural isomers relating to the location of the quinoid ring has been demonstrated by H-1 NMR and C-13 NMR spectroscopy. The molar ratio of these two isomers has been estimated to 70:30.

Citation

Rebourt, E., Joule, J., & Monkman, A. (1997). Polyaniline oligomers; Synthesis and characterisation. Synthetic Metals, 84(1-3), 65-66

• Journal Article Type: Article
• Publication Date: 1997-01
• Journal: Synthetic Metals
• Print ISSN: 0379-6779
• Publisher: Elsevier
• Volume: 84
• Issue: 1-3
• Pages: 65-66
• Keywords: coupling reactions; nuclear magnetic resonance spectroscopy; polyaniline and derivativesMODEL