A neutral state green polymer with a superior transmissive light blue oxidized state

Durmus, Asuman
Günbaş, Emrullah Görkem
Camurlu, Pinar
Toppare, Levent Kamil
This report highlights the synthesis of only the second green polymer in the literature, which possesses superior properties over the first: a highly transmissive light blue color in the oxidized state with high optical contrast and excellent switching properties.


A unique processable green polymer with a transmissive oxidized state for realization of potential RGB-based electrochromic device applications
Günbaş, Emrullah Görkem; Toppare, Levent Kamil (2008-07-23)
Realization of commercial RGB-based polymer electrochromic-device applications can only be achieved by processable materials that possess three complementary colors in the reduced state and are transparent in the oxidized state. This report highlights the synthesis of the first processable green polymer with a transmissive oxidized state. The polymer revealed superior optical contrast in the visible region with fast switching times and robust stability. Hence, this material is the outstanding candidate for ...
A blue to highly transmissive soluble electrochromic polymer based on poly(3,4-propylenedioxyselenophene) with a high stability and coloration efficiency
Ozkut, Merve Icli; Atak, Samed; Önal, Ahmet Muhtar; CİHANER, ATİLLA (2011-01-01)
The optical and electrochemical properties of a regioregular and soluble alkylenedioxyselenophene-based electrochromic polymer, namely poly(3,3-didecyl-3,4-dihydro-2H-selenopheno[3,4-b][1,4] dioxepine (PProDOS-C-10), which is synthesized by electrochemical polymerization, are highlighted. It is noted that this unique polymer has a low band gap (1.58 eV) and is exceptionally stable under ambient atmospheric conditions. Polymer films retain 97% of their electroactivity after 40 000 cycles. The percentage tran...
Synthesis of opaque and colored hollow polymer pigments
Karakaya, Ekin; MAVİŞ, BORA; Gündüz, Güngör (2017-09-01)
A parametric study was carried out to investigate the effects of process parameters on the properties of opaque and/or colored polymer pigment. The core was synthesized using methyl methacrylate (MMA), methacrylic acid (MAA), and ethylene glycol dimethacrylate, and the shell from styrene. The surfactant/water (S/W) ratio was changed between 0.56 and 1.46, and the best ratio was determined to be 0.97. The increase in the amount of MAA and the pH of the medium increases the diameter of the swollen particles. ...
Realization of neutral state green polymeric materials
Durmuş, Asuman; Toppare, Levent Kamil; Department of Chemistry (2009)
Polymeric electrochromic materials that has as one of the three complementary colors (red, green, and blue) in the neutral form and become transparent via oxidation (or reduction), has a crucial importance towards use of these materials in electrochromic devices and displays. To reflect red or blue color in neutral state, the materials have to absorb at only one dominant wavelength. On the contrary, to have a green color, there should exist at least two simultaneous absorption bands in the red and blue regi...
Sol-gel derived tungsten oxide based electrochromic coatings
Işık, Dilek; Durucan, Caner; Department of Metallurgical and Materials Engineering (2008)
The microstructural, electrochemical and optical properties of sol-gel derived tungsten oxide electrochromic coatings have been investigated. Coatings were formed by spinning of tungsten metal based aqueous sol on glass with native ITO layer. Three sol formulations; acetylated peroxotungstic acid (APTA), peroxotungstic acid (PTA) and titanium-doped peroxotungstic acid (Ti-PTA) were employed to obtain 200-300 nm thick multi-layered coatings. Material and electrochromic characterization of the coatings have b...
Citation Formats
A. Durmus, E. G. Günbaş, P. Camurlu, and L. K. Toppare, “A neutral state green polymer with a superior transmissive light blue oxidized state,” CHEMICAL COMMUNICATIONS, pp. 3246–3248, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41944.