Liquid crystalline dimers containing a cholesteryl group: Chiral smectic phases, and re-entrant TGBA* phase

Huang, Haozhou; Ye, Cong; Du, An; Hu, Bing; Li, Jun; Zhang, Baoyan

doi:10.1016/j.molliq.2021.117920

Cited by 5 publications

(3 citation statements)

References 64 publications

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“…The detailed synthetic procedures are similar to those mentioned in the previous research, and the synthetic routes of the dimers were shown in Figure . The molecular structural characterization data of a representative target compound, namely, BMD 6–6 , and its intermediate A 6 are given below.…”

Section: Methodsmentioning

confidence: 99%

“…The mesophase behaviors of the chiral bent-structure liquid crystals are more complex than those of the achiral ones. Besides the re-entrancy and intercalation which are considered to be uncommon mesophase behaviors, the chiral bent-structure liquid crystals are able to exhibit frustrated phases such as twist grain boundary phases (TGB*) and blue phases (BPs) …”

Section: Introductionmentioning

confidence: 99%

“…11 The mesophase behaviors of the chiral bent-structure liquid crystals are more complex than those of the achiral ones. Besides the re-entrancy and intercalation which are considered to be uncommon mesophase behaviors, 12 the chiral bentstructure liquid crystals are able to exhibit frustrated phases such as twist grain boundary phases (TGB*) and blue phases (BPs). 11 Blue phase liquid crystals, which self-assemble into soft three-dimensional (3D) photonic crystals, show many outstanding characteristics such as the selective reflection of light, fast response time, and no birefringence, attracting enormous research interest due to their application potential in both display and photonic device fields.…”

Section: Introductionmentioning

confidence: 99%

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Bent-Structure Liquid Crystalline Dimers Containing a Cholesteryl Group Exhibiting Blue Phases

Huang

et al. 2022

Crystal Growth & Design

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A new series of bent-structure liquid crystalline dimers containing a cholesteryl group were synthesized. The molecular structure and mesophase properties of the dimers were characterized by FTIR, 1H-NMR, DSC, XRD, POM, and UV–vis. The BPmem was proposed, which is considered to be a transition state appearing during the cooling process between BP I and N* and having memory for the original lattice network of BP I. The BPmem state was analyzed in detail, and it proved to be influenced by the molecular structure, the cooling rate, and the surface anchoring. For the planar-aligned sample, the macroscopic color of BPmem is the superposition of two selective reflection wavelengths, different from those of conventional N* and BPs, which has potential application value.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%