Molecular Crystals and Liquid Crystals p. 37/[337]-44/[344] (2005)
Update date:2022-08-17
Topics:
Xiao, Ningning
Chen, Yu
Lemieux, Robert
Buncel, Erwin
Iftime, Gabriel
Kazmaier, Peter M.
Manipulation of the rate of thermal reversion of N-functionalized merocyanines (MC) to the corresponding spiropyran isomers in the dark, was demonstrated by using both organic acid and base additives. In the presence of organic bases, increase or decrease of the rate of reaction was dependent on the solvent used. When organic acids were used, in all cases the reaction rate decreased when compared with the system containing no acid. Similar behavior was also observed in polymer films. This approach is of interest for applications in the design of optical switches and memory with enhanced stability of the stored information.
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