Journal ArticleDOI
Orientational ordering in polymorphic terepthal-bis-4-butylaniline (TBBA)
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TLDR
In this article, individual molecular tilt angle behavior in the smectic C region is represented upon application of a molecular statistical model to the polymorphic terepthal-bis-butylaniline (TBBA) in conjunction with the experimental layer spacings from SAXS measurements using the synchrotron X-ray beam.About:
This article is published in Solid State Communications.The article was published on 2002-05-01. It has received 3 citations till now. The article focuses on the topics: Mesogen.read more
Citations
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Self-Organization of C60 Nanoparticles in Carbon Disulfide Solution
TL;DR: In this paper, positronium (Ps) was used as a fundamental probe to map changes in the local electron density of the microenvironment and reveal the onset concentration for stable aggregate formation in this solvent to be 0.06−0.36 g/dm3.
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Rotational flexibility in NH4+-encapsulated 18-crown-6 studied by molecular dynamics and positron annihilation: where does the positron localize?
TL;DR: Conformational flexibility of the ammonium complex of macrocyclic 18-crown-6 at 100 K < or = T = or = 300 K is studied using a positron microprobe in conjunction with molecular dynamics simulations.
Journal ArticleDOI
Existence of a third crystalline phase in tbba
TL;DR: Positron annihilation lineshape (S-parameter) measurements and small angle X-ray scattering (SAXS) using synchrotron X-rays on liquid crystalline terepthal-bis-butylaniline (TBBA) are reported at c...
References
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Journal ArticleDOI
Short Range Order Effects in the Isotropic Phase of Nematics and Cholesterics
TL;DR: In this article, the authors assume that the local state of order in the isotropic phase is a symmetric traceless tensor Qαβ, proportional to the anisotropic part of a tensor property such as the magnetic susceptibility.
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X-Ray Scattering from Liquid Crystals. I. Cholesteryl Nonanoate and Myristate
TL;DR: In this paper, X-ray scattering intensities from unoriented samples of cholesteryl nonanoate and myristate are reported for several temperatures in the smectic $A, cholesteric, and isotropic liquid phases.
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Temperature-dependent tilt angle in the smectic C phase of a liquid crystal
TL;DR: In this article, the authors used conoscopic observation and circularly polarized light to estimate the C phase temperature dependent tilt angle of liquid crystal smectic C-particle tilt angle.
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Nuclear magnetic resonance studies of smectic liquid crystals
Zeev Luz,Saul Meiboom +1 more
TL;DR: In this article, nuclear magnetic resonance measurements in the smectic liquid crystalline phases of seven thermotropic compounds are reported, including terephthalbis(butylaniline), ethyl(methoxybenzylidene)amino] cinnamate, diheptyloxyazoxybenzinene, octyloxybenzoic acid, dipentylazoxycinnamate; diethylazioxcinnamic; dietHylazoxoxybenzosate; diheptonyloxy-benzene;
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The interaction between positrons and dislocations in copper and in an aluminum alloy
TL;DR: In this paper, the anniliation lineshape is used to measure the percentage of positrons trapped by dislocations, and the sample hardness is a linear function of the logarithm of the deformation.