منابع مشابه
Thermo-sensitive discotic colloidal liquid crystals.
We fabricated for the first time thermo-sensitive discotic liquid crystals by grafting poly(N-isopropylacrylamide) (PNIPAM) onto zirconium phosphate (ZrP) platelets using pre-irradiated polymerization. The I-N transition was investigated by adjusting the temperature for a single set of samples. We found that soft disks self-assemble into nematic liquid crystals in a wider thickness-over-diamete...
متن کاملA case for discotic liquid crystals in molten triglycerides.
To date, essentially only two structural models have been proposed and debated in detail for explaining the liquid state order of triglycerides, and both invoke a form of thermotropic liquid crystalline order in triglyceride melts. These are the paralamellar model of Larsson et al. (J. Am. Oil Chem. Soc. 1992, 69, 835) and the nematic model of Cebula et al. (J. Am. Oil Chem Soc. 1992, 69, 130)....
متن کاملThe Saint-Venant principle for columnar discotic liquid crystals
2014 We compute the high frequency elastic distortion of a columnar discotic single crystal submitted to a longitudinal dilation. The ends of the columns are assumed to be clamped and anchored perpendicularly to two infinitely rigid glass plates, on a width L. The local strain close to the plates relaxes to the homogeneous distortion of an unclamped sample on a characteristic length £ ~ (Lm)1/2...
متن کاملNematic stability of discotic liquid crystals with orientation-dependent interactions.
Technological applications of discotic nematogens are limited by the robustness of the columnar phases. This investigation employs Monte Carlo simulations to explore the potentiality of tailoring specific interactions of either stacking or peripheral type in order to enhance nematic stability. It is concluded that the nematic phase is favored for discotic particles systems with homogeneous or w...
متن کاملElectric-field response of discotic hexabenzocoronene (HBC) liquid crystals.
A HBC derivative bearing six branched, space-demanding, alkyl side chains containing ether linkages has been synthesized and its thermotropic properties were investigated by polarization optical microscopy (POM) and differential scanning calorimetry (DSC). To our surprise, this molecule can respond to electric fields, and the influences of alternating current (AC) and directing current (DC) ele...
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ژورنال
عنوان ژورنال: Liquid Crystals Today
سال: 1996
ISSN: 1358-314X,1464-5181
DOI: 10.1080/13583149608047629