Electrochemical and optical properties of dicyclohexylmethyl substituted poly(3,4‐propylenedioxythiophene) analogue

ABSTRACT An analogue of disubstituted 3,4‐propylenedioxythiophenes, namely 3,3‐bis(cyclohexylmethyl)‐3,4‐dihydro‐2H‐thieno[3,4‐b][1,4]dioxepin (ProDOT‐CycHex2), was synthesized and its electrochemical polymerization was carried out successfully in an electrolyte solution of 0.1 M tetrabutylammonium...

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Bibliographic Details
Published in:Journal of applied polymer science 2018-05, Vol.135 (18), p.n/a
Main Authors: Çakal, Deniz, Cihaner, Atilla, Önal, Ahmet M.
Format: Article
Language:English
Subjects:
Acetonitrile
Chemical synthesis
conducting polymers
Dichloromethane
electrochemistry
Electrochromism
Materials science
Optical properties
Oxidation
Polymers
Response time
Substitutes
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Summary:ABSTRACT An analogue of disubstituted 3,4‐propylenedioxythiophenes, namely 3,3‐bis(cyclohexylmethyl)‐3,4‐dihydro‐2H‐thieno[3,4‐b][1,4]dioxepin (ProDOT‐CycHex2), was synthesized and its electrochemical polymerization was carried out successfully in an electrolyte solution of 0.1 M tetrabutylammonium hexafluorophosphate dissolved in a mixture of acetonitrile and dichloromethane (3/1: v/v). The corresponding polymer called PProDOT‐CycHex2 has a reduced band gap of 1.85 eV and an electrochromic property: blue/violet when neutralized and highly transparent when oxidized. Also, PProDOT‐CycHex2 film exhibited faster response time (0.7 s) and higher coloration efficiency (769 cm2/C) during oxidation when compared to its benzyl substituted analogue. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46214.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.46214