Antiferroelectric alignment and mechanical director rotation in a hydrogen-bonded chiral SmC^*_Aelastomer

Effect of H-Bonded Liquid Crystal Polymers on CdSe Quantum Dot Alignment within Nanocomposite

“…Taking into account that the shape of the scattering in the small-angular region is determined by the shape of a scatter, 29 there is good reason to believe that the transformation of the scattering shape presented in Figure 7 is connected with the preferred alignment of the spherical CdSe particles. Particle organization follows in accordance with regulations confirmed for LC polymers 23,24 and is due to noncovalent bonding of the quantum dots with the LC polymer matrix. The latter controls the preferable alignment of quantum dots along the stretching axis parallel to the smectic planes.…”

“…These maxima being related with the scattering on to the tilted side groups of the matrix polymer with SmC structure correspond to the tilt of side groups in the SmC structure of the matrix polymer, 23,24 which seem to be present in the composites even at high CdSe quantum dot content. As for the maxima at 2θ ≈ 3°and 6°connected with responsible for the layered structure, both register at similar polymer angle positions in the WAXS diagram ( Figure 3a) and textured X-ray pattern (Figure 3c) when the quantum dot content is 5 wt %.…”

“…23,24 The formation of the LC smectic phase in this polymer results from hydrogen bonding (H-bonding) of alkoxybenzoic acid moieties.…”

Morphological studies of a hydrogen-bonded LC polymer obtained by photopolymerization in LC solvents

“…In recent years, liquid crystalline polymer networks, crosslinked not by covalent bonds but by hydrogen bonds, have been extensively studied [14][15][16][17]. Although the polymer networks have dense hydrogen bonds that form between benzoic acid moieties in the side chain, they can exhibit liquid crystal phases and a reversible LC-isotropic phase transition.…”

Nanocomposites Based on Liquid Crystal Polymers and Inorganic Nanoparticles

“…Гомополимеры (рис. 1, а) образуют смектическую S A мезофазу благодаря водородному связыванию остатков алкоксибензойной кислоты, в результате чего фор-мируются мезогеноподобные димеры [26,27]. В свою очередь, ЖК-структура сополимеров (рис.…”