Electrochromic Properties of 1,3-Di(2-[10-{4-methoxyphenyl}phenothiazin-3-yl]vinyl)benzene

Authors

  • Jūratė SIMOKAITIENĖ, Asta ŠAKALYTĖ, Timofei E. GRIGORIEV, Elena E. MAKHAEVA, Juozas Vidas GRAŽULEVIČIUS1∗ Kaunas University of Technology

Keywords:

phenothiazine derivative, molecular glass, electrochromic properties, polymers

Abstract

Electrochemical and spectroelectrochemical properties of molecular glass 1,3-di{2-[10-(4-methoxyphenyl)phenothiazin-3-yl]vinyl}benzene are reported. It exhibits relatively high glass transition temperature (105 °C) and high thermal stability with 5 % weight loss temperature of 352 °C. The amorphous film of the compound showed cathodic and anodic responses with a clear and homogeneous change of color from yellow to violet in the anodic region. At 1.7 V two new absorption bands arise in the Vis absorption spectrum of the compound studied, which are absent at 0 V. One is near 520 nm and the second is at 683 nm. Addition of poly(methylmethacrylate) and poly(N-vinylcaprolactam) enhances electrochromic properties of the material.

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Published

2009-09-04

Issue

Vol. 15 No. 3 (2009)

Section

POLYMERS AND COMPOSITES

License

 

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