Synthesis, photophysical, and electrochromic properties of new triarylamino-containing polyphenylquinoxalinesстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:New triarylamino-containing bis(alpha-diketones) are synthesized. On the basis of these compounds, a series of electrochromic organosoluble polyphenylquinoxalines with glass-transition temperatures of 224-315A degrees C are prepared. All polymers intensively fluoresce in solutions and thin films with maxima at 535-600 and 530-560 nm, respectively. Cyclic voltammograms of polyphenylquinoxalines exhibit reversible redox properties in the range E (1/2) = 0.92-1.25 eV. It is shown that, after 15 cycles, all polymers preserve high stability and reversibility of electrochromic characteristics, but their color changes from yellow (neutral form) to wine red (oxidized form).