Electrochromic Linear and Star Branched Poly(3,4-ethylenedioxythiophene−didodecyloxybenzene) Polymers
| Autor: | Fei Wang, R. David Rauh, Michael S. Wilson, Barry C. Thompson, Philippe Schottland, John R. Reynolds |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
chemistry.chemical_classification
Thermochromism Materials science Polymers and Plastics Organic Chemistry Polymer Conjugated system Triphenylamine Inorganic Chemistry chemistry.chemical_compound chemistry PEDOT:PSS Electrochromism Polymer chemistry Materials Chemistry Thermal stability Poly(3 4-ethylenedioxythiophene) |
| Zdroj: | Macromolecules. 33:2083-2091 |
| ISSN: | 1520-5835 0024-9297 |
| Popis: | New linear and star structured poly(3,4-ethylenedioxythiophene−didodecyloxybenzenes) (PEBs) have been prepared which exhibit thermochromism and multicolor electrochromism as they are able to produce the three basic colors in the RGB system: red, green, and blue. The star polymer features a conjugated hyperbranched poly(triphenylamine) core with PEB arms ca. 8−10 repeat units (16−20 rings) in length. Red in solution, the optical spectra of both polymers exhibit a maximum absorption at 455 nm in the neutral state. Linear and star PEB are thermally stable up to 300 °C as demonstrated by TGA. The presence of an EDOT-phenylene repeat in the conjugated backbone results in a relatively low half-wave potential of +0.20 V vs Fc/Fc+, which is lower than regioregular poly(3-hexylthiophene) by 0.4 V and only slightly higher than PEDOT. As a result, star PEB is the first representative of a new class of star-shaped polymers where it is possible to address the electroactive arms independently from the conjugated core.... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|