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- W2045381504 abstract "The role of pyridins in inhibiting the electropolymerisation of pyrrole and N-methylpyrrole is examined. Pyrrole in the presence of excess pyridin yields either thin insulative films or else coloured soluble species depending on the pyridin/pyrrole ratio, the nature of the pyridin and the kinetic regime of the reaction; thin film formation predominates at equimolar ratios. Ten major inferences drawn from the electrochemistry, reflectance and transmittance IR and XPS studies of the films, and the molecular properties of the pyridins, allow some reasonably well-founded mechanistic conclusions to be drawn. The pyridin acts to remove the proton from the nitrogen atom of the first-formed pyrrole radical cation before dimerisation occurs. Following the major possible secondary processes for film formation, XPS and IR show the composition of the final thin-film surface to depend upon several factors including pyridin structure; such conclusions regarding termination point to addition of deprotonated radical to polymer radical as the dominant propagation step. Brief comparative studies of N-methylpyrrole underlined the particular role of the pyrrole N-proton, and indicated other differences including lower sensitivity to the presence of pyridin and failure to form insulative film." @default.
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- W2045381504 date "1988-11-01" @default.
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- W2045381504 title "Electrochemical and spectroscopie studies of pyridin intervention in the electrooxidation of pyrrole" @default.
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- W2045381504 doi "https://doi.org/10.1016/0022-0728(88)80009-3" @default.
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