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Synthesis and optoelectrochemical properties of dark blue-to-transmissive electrochromic poly(2-methyl-3,4- dihydro-2H-thieno[3,4-b][1,4]dioxepine)

XIAOMING CHEN1,*

Affiliation

  1. Anhui Key Laboratory of Advanced Building Materials, School of Materials & Chemical Engineering, Anhui Jianzhu University, Hefei 230601, P. R. China

Abstract

A new electrochromic polymer poly(2-methyl-3,4-dihydro-2H-thieno[3,4-b][1,4]dioxepine) (PProDOT-as-Me) based on 3,4- propylenedioxythiophene (ProDOT) with asymmetric mono-methyl pendant groups was successfully synthesized through electropolymerization in lithium perchlorate/acetonitrile electrolyte couple. The polymer film displays reversible electrochromic behavior switching between dark blue neutral state (-1V) and transmissive sky blue oxidized state (1V). The electrochemistry, spectroelectrochemistry and electrochromic properties of the polymer film were characterized in details..

Keywords

Dark blue, Transmissive, Electrochromic polymer.

Submitted at: Sept. 7, 2018
Accepted at: June 14, 2019

Citation

XIAOMING CHEN, Synthesis and optoelectrochemical properties of dark blue-to-transmissive electrochromic poly(2-methyl-3,4- dihydro-2H-thieno[3,4-b][1,4]dioxepine), Journal of Optoelectronics and Advanced Materials Vol. 21, Iss. 5-6, pp. 361-366 (2019)