Electrorheological properties of polypyrrole prepared by the action of mineral acids on pyrrole

Teare, Geoffrey C.; Teare, G. C; Ratcliffe, Norman M.

Abstract

Polypyrrole was prepared in high yield by the polymerisation of pyrrole in strongly acidic conditions using hydrofluoric, hydrochloric (at 20°C and 100°C), hydrobromic, nitric and orthophosphoric acids. The polymer products incorporated significant amounts of the anion from the acid used. The particulate morphology of the polymer products chiefly consisted of agglomerated μm-sized spheres. The Theological properties of dispersions of polymers prepared from pyrrole using hydrochloric and hydrobromic acids, suspended in 1-chloronaphthalene-1-bromonaphthalene, were found to be electric-field dependent. Fluids prepared from the polypyrrole products derived from hydrofluoric, nitric and orthophosphoric acids did not exhibit an electrorheological response.

• Journal Article Type: Article
• Publication Date: Jan 1, 1996
• Deposit Date: Jul 22, 2013
• Publicly Available Date: Apr 29, 2016
• Journal: Journal of Materials Chemistry
• Print ISSN: 0959-9428
• Electronic ISSN: 1364-5501
• Publisher: Royal Society of Chemistry
• Peer Reviewed: Peer Reviewed
• Volume: 6
• Issue: 3
• Pages: 301-304
• DOI: https://doi.org/10.1039/jm9960600301
• Keywords: polypyrrole, pyrrole
• Public URL: https://uwe-repository.worktribe.com/output/1106272
• Contract Date: Apr 29, 2016