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Electrochemistry of carbazolylalkyl substituted polysiloxanes

✍ Scribed by J. M. Maud; A. Vlahov; N. A. Gray

Book ID
104655723
Publisher
Springer US
Year
1940
Tongue
English
Weight
418 KB
Volume
5
Category
Article
ISSN
0957-4522

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✦ Synopsis

Carbazolylalkyl-substituted polysiloxanes undergo anodic oxidation to give insoluble electrode supported cross-linked films containing dicarbazolyl groups. The electrochemistry of the immobilized dicarbazolyls can be addressed and the electrochemical switching between the coloured (oxidized) and colourless (reduced) states forms the basis of an electrochromic display. Cyclic voltammetry suggests a model in which virtually all of the pendant carbazole groups are converted into dicarbazolyls. The model is consistent with observation of a range of polymers, and analogous oligomers, and contrasts with earlier reports on the same type of material.

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Synthesis, Characterization, and Evaluat
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✍ David P. Dworak; Mark D. Soucek πŸ“‚ Article πŸ“… 2007 πŸ› John Wiley and Sons 🌐 English βš– 174 KB

## Abstract Cyclopentyl‐ and cyclohexyl‐substituted polysiloxanes terminated with amino groups were prepared. Initially, the cycloalkene and dichlorosilane were reacted at high pressure (approx. 250 psi) and high temperature (120 °C) to yield the cycloaliphatic dichlorosilane in a two‐step process.