Journal ArticleDOI
Phase transitions in liquid crystals
TLDR
A comprehensive overview of phase transition studies can be found in this article, where the authors identify the essential key concepts and points of difficulty associated with the study of phase transitions and discuss the most widely used experimental techniques for measuring these transition properties.About:
This article is published in Physics Reports.The article was published on 2000-02-01. It has received 308 citations till now. The article focuses on the topics: Phase transition & Liquid crystal.read more
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Towards in silico liquid crystals. Realistic transition temperatures and physical properties for n-cyanobiphenyls via molecular dynamics simulations.
TL;DR: By using the united-atom force field developed herein, it is shown that the experimental isotropic-nematic transition temperatures are reproduced within 4 K, allowing a molecular-level interpretation of the odd-even effect along the series.
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Structure And Thermodynamics of Weakly Segregated Rod-Coil Block Copolymers
TL;DR: In this paper, the selfassembly of a series of monodisperse rod−coil block copolymers is studied in the weak segregation limit, and the order to microphase disorder transition (ODT) and nematic isotropic (NI) transition are experimentally investigated.
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Mechanochromic luminescence of halide-substituted difluoroboron β-diketonate dyes
TL;DR: In this paper, the effects of halide substituents on mechanochromic luminescence quenching were investigated for a series of difluoroboron β-diketonate (BF2bdk) compounds.
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Universalization of the Phase Diagram for a Model Rod-Coil Diblock Copolymer
TL;DR: In this paper, the Flory−Huggins interaction is measured for a model rod-coil block copolymer system, poly(alkoxyphenylenevinylene-b-isoprene), by fitting the interfacial segregation of block copolerant to a homopolymer interface and by using the random phase approximation (RPA) for block co-olymers.
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Insight into entropy
TL;DR: In this article, the qualitative character of entropy has been investigated and several examples from statistical mechanics (including liquid crystal reentrant phases, two different lattice gas models, and the game of poker) demonstrate facets of this difficult question and point toward an answer.
References
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Journal ArticleDOI
Truxene derivatives: Temperature inverted nematic-columnar sequence in disc-like mesogens
TL;DR: In this article, three hexa-n-alkanoates of truxene are presented, and a fluid phase is observed below a columnar viscous phase with respect to temperature, possibly the first example of a reentrant nematic phase in disc-like compounds.
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Heat Capacity and Enthalpy Behavior Near Phase Transitions in Some Alkylcyanobiphenyls
TL;DR: In this article, an adiabatic scanning calorimeter has been used in a calorimetric investigation of alkyl-cyanobiphenyl (nCB) liquid crystals.
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High-Resolution X-Ray Study of a Second-Order Nematic—Smectic- A Phase Transition
TL;DR: In this paper, the authors carried out a high-resolution x-ray-scattering study of the critical fluctuations in the nematic phase associated with the Nematic-smectic-$A$ transition in N-$p$-cyanobenzylidene-$p-octyloxyanilene (CBOOA).
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Measurement of Smectic-A-Phase Order-Parameter Fluctuations near a Second-Order Smectic-A-Nematic-Phase Transition
TL;DR: In this article, the anisotropic liquid-structure factor of C-cyanobenzylidene-amino and octyloxybenzene was measured in the nematic phase using x rays.
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Density-functional, Landau, and Onsager theories of the isotropic-nematic transition of hard ellipsoids
TL;DR: A density-functional theory for the isotropic-nematic transition of hard ellipsoids is proposed which is in fair quantitative agreement with the recent computer simulations of this system and which improves considerably upon the earlier theoretical attempts.