Kan Sato

Charge transport processes in nonconjugated redox-active polymers with electrolytes were studied using a diffusion-cooperative model. For the first time, we quantitatively rationalized that the limited Brownian motion of the redox centers bound to the polymers resulted in the 103–4-fold decline of the bimolecular and heterogeneous charge transfer rate constants, which had been unexplained for half a century.

Robust radical-substituted polymers with ideal redox capability were used as “command surfaces” for liquid crystal orientation. The alignment of the smectic liquid crystal electrolytes with low-dimensional ion conduction pathways was reversible and readily switched in response to the redox states of the polymers. In one example, a charge storage device with a cooperative redox effect was fabricated.

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