Shoji, Yusuke; Kinoshita, Daiki; Furumi, Seiichi published an article in 2020, the title of the article was Straight-chain alkanediol derivatives leading to glassy cholesteric liquid crystals with visible reflection.Category: alcohols-buliding-blocks And the article contains the following content:
A series of straight-chain alkanediol derivatives possessing two cholesteryl groups through carbonate ester linkages (Cn-DiCh) showed thermotropic cholesteric liquid crystal phase with visible reflection. The thermally induced shifting ranges of reflection peaks were dependent on the central carbon chain length (n) of Cn-DiCh. Although the pristine Cn-DiCh showed narrow wavelength ranges of the reflection peaks by changing the temperature, prepared mixture of two different kinds of Cn-DiCh at their equivalent weight ratio, which exhibited the reflection peak shift throughout a wide visible-wavelength range between 400 nm and 850 nm. Moreover, the binary mixtures of Cn-DiCh were rapidly cooled from the CLC temperatures to 0°C, whereupon the reflection colors could be preserved even at room temperature over 2 mo. Such rapid cooling treatment enabled the straightforward preparation of solid-state G-CLCs with visible reflection characteristics, thereby leading to the applications of rewritable full-color imaging media. The experimental process involved the reaction of Pentane-1,5-diol(cas: 111-29-5).Category: alcohols-buliding-blocks
The Article related to cholesteric liquid crystal preparation reflection spectra, Alicyclic Compounds: Cyclohexanes and other aspects.Category: alcohols-buliding-blocks
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