Optical and thermal properties of cholesteric solid from dicholesteryl esters of diacetylenedicarboxylic acid

Cholesteric Solid Films Formed by Spin-Coating Solutions of Dicholesteryl Esters

“…[7] MIKASA 1H-DX was used for spin-coating. The surface temperature of the substrate was controlled and monitored by a drier and an infrared thermometer (TASCO THI-400S), respectively.…”

Synthesis and characterization of functionalized triblock polymer: The prepared polymer is cholesteryl terminated and chain‐extended PCL

“…26,29 However, in this investigation, only one peak was detected during heating and cooling in DSC curves (Fig. 6), although the PLM results displayed an obvious birefringence character, which is very similar to that of the other functionalized polymers/oligomers by chol moiety.…”

“…It is well known that the liquid crystalline character of a series of cholesteryl esters has been found for a long time, [20][21][22][23][24] especially in recent years low molecular weight dicholesteryl esters attracted much attention as a new class of self-assembly materials. [25][26][27][28][29] Here, it was anticipated that the cholesteryl moiety could provide a driving force for the self assembly of the dicholesteryl functionalized triblock polymers.…”

Electrical Conformational Bistability of Dimesogen Molecules with a Molecular Chord Structure

“…As an example, dicholesteryl esters containing a diacetylene unit as a rigid linker in the flexible chain showed slower crystallization and formed a cholesteric solid by cooling from the cholesteric temperature to 0 8C. [4] These studies suggested that the rigidity of the linker and the intermolecular interactions are very important for the thermal and optical properties of dimesogen ChLCs, which are widely applied in molecular photonics or information technology, such as e-paper, commercial billboards, and power-saving liquid crystal displays. [3,5,6] The submolecular resolution capability of scanning tunneling microscopy (STM) makes it possible to investigate the molecular arrangements in the self-assembled structures.…”

“…[4] We calculated the charge populations of the Ch-14 molecules (see Supporting Information) and found that the linker alkane chains are almost neutrally charged, while the dipole moments are mainly contributed by the mesogen part (the dipole moment vectors of the mesogen part are presented in the Supporting Information). It is clear that the dominant dipole moment vector is along the y and z axes, that is, approximately perpendicular to the direction of the linking unit.…”