NDLI: Potential controlled electrosynthesis of polythiophene-3 methanol: application of the two-dimensional layer-by-layer nucleation and growth model

Content Provider	IEEE Xplore Digital Library
Author	Pohjakallio, M. Sundholm, G. Vieil, E.
Copyright Year	1994
Description	Author affiliation: LEM, SESAM, DRFMC (Pohjakallio, M.)
Abstract	Summary form only given. The nucleation and growth of polythiophene-3-methanol (PTM) films on platinum electrodes in 0.1 M Bu/sub 4/NclO/sub 4/ acetonitrile has been studied using potentiostatic steps (under glove box atmosphere). The data obtained from the early parts of the chronoamperogrammes fit the model of instantaneous nucleation followed by two dimensional (2D) growth. We believe that the reason for this 2D growth leading to a highly compact structure is chemical. As already demonstrated [1] the OH group easily attacks the radical cations formed during the oxidation process, as a result of which part of the monomer units couple together via ether bonds, C-O-C. These C-O-C bonds may form sites that are less favourable with respect to oxidation and the following nucleation than other parts of the electrode surface and thus drive the polymer to grow mainly in the direction parallel to the surface, the growth perpendicular to the surface being negligible.
Starting Page	298
Ending Page	298
File Size	105133
Page Count	1
File Format	PDF
DOI	10.1109/STSM.1994.835328
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-07-24
Publisher Place	Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes Chemistry Atmospheric modeling Laboratories Conductivity Polymer films Oxidation Chemicals Erbium Methanol
Content Type	Text
Resource Type	Article

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