Phase transitions in liquid crystals

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Related Articles. Paper Title Pages. Abstract: A homologous series of three-benzene-ring containing bent-cores compounds 1,3-phenylene-bis[4- alkylcarboyloxyl benzylideneamine] were synthesized. In these molecules the terminal ester chains CH3 CH2 n-2COO-, where n was the number of carbon atoms in the terminal chains, were linked to the central three-benzene-ring containing bent-core.

Influence of pressure on the electric-field-induced phase transitions in liquid crystals

As n changed from , the melting temperatures and clearing points were in the high temperature ranges of oC. As n changed in the range of , the melting temperatures and clearing points were dramatically dropped in a low temperature ranges oC. Abstract: A bent-core compound with three benzene-ring cores 1,3-phenylene-bis [4- nonylcarboyloxyl benzyl ideneamine] was synthesized. Its mesomorphic properties were characterized with differential scanning calorimetry and polarized optical microscopy, respectively.

This kind of bent-core compound exhibited mesophases in the temperature range of oC for the first cooling but cyclic heating and cooling could lower the phase transition temperatures for this bent-core liquid crystal. Our results demonstrated that bent-core molecules with three benzene-ring cores can also form mesophases as those five benzene-ring containing bent-core molecules do.

Authors: Yuan Ming Huang. Abstract: A three-ring containing bent-core compound 1,3-phenylene-bis 4-butoxybenzylidene amine was synthesized and characterized with differential scanning calorimetry and polarized optical microscopy. It exhibited mesophases in the temperature range of oC for the first cyclic heating and cooling.

Our results demonstrated that three-ring containing bent-core molecules can form mesophases. The polarized optical microscopic graphs illustrate that the bent-core molecules are able to self-assemble themselves into the Chinese character either in a sequential order or in a reverse order. Blanco et al.

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Liquid Crystal Transitions

Brown et al. Veerman and D. Frenkel, Phys. A , 45 , Authors F.

Liquid Crystal Phase Transitions in Suspensions of Plate-like Particles

Kassapidou and H. Lekkerkerker, Nature , , Utrecht University The Netherlands. Soft Condensed Matter.

Extract from Jean Painlevé Phase Transition in Liquid Crystals 1978

Viswanathan, S. Dhara, Detection of phase transitions from the study of whispering gallery mode resonance in liquid crystal droplets, Appl. Vahala, Optical Microcavities , World Scientific, Vollmer, S. Arnold, D. Keng, Single virus detection from the reactive shift of a whispering-gallery mode, Proc. Nat'l Acad. USA , p. Loncar, Molecular sensors: cavities lead the way, Nat.

Photonics 1, p.

Related Methods

Wang, L. Yuan, C. Kim, Q. Han, T. Wei, X. Lan, H. Xiao, Optical microresonator based on hollow sphere with porous wall for chemical sensing, Opt.


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Yang, M. Huang, X. Dai, M.

Phase Transitions in Liquid Crystals

Huang, Y. He, S. Qzdemir, J. Zhu, W. Kim, L.