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Refractive and birefringent properties of 4-alkyl-4 '-oxycyanobiphenyls at direct and reverse phase transitions
(Taylor & Francis Ltd, 2017)
Studies of temperature behavior of the mean refractive index, ordinary and extraordinary refractive indices, and birefringence have been carried out for three nematogens. The thermo-morphologic properties of the biphasic ...
Comparative Investigations of Light Transmission in Aligned and Non-aligned Textures of Homogeneous Mixtures of 4-n-alkyl-4'-Cyanibiphenyl Mesogens at Direct and Reverse smectic A <-> isotropic liquid Phase Transitions
(Springer, 2017)
The thermo-optical properties of various types of textures (the homeotropic, planar, and tilted aligned and non-aligned textures) in liquid crystalline materials with smectic A mesophase have been investigated. Investigations ...
THERMOTROPIC, REFRACTING AND THERMO-OPTICAL PROPERTIES IN THREE HOMOLOGS OF 4-N-ALKYL-4 '-CYANOBIPHENYLS
(Lithuanian Physical Soc, 2015)
Investigations of temperature behaviour of the mean refractive index n, ordinary n(o) and extraordinary n(e) refractive indices, and birefringence Delta n have been carried out for three homologues of 4-n-alkyl-4'-cyanobiphenyls ...
Thermotropic, refracting and birefringent properties in homogeneous mixtures of 4-n-alkyl-4 '-cyanobiphenyl mesogens
(Elsevier, 2016)
In this work, studies of the thermotropic and thermo-optical properties in five homogeneous mixtures of 4-n-alkyl-4'-cyanobiphenyl mesogens have been carried out. Temperature behavior of the mean refractive index n, ordinary ...
Change of thermo-morphologic and thermotropic properties in liquid crystals exhibiting multiple phase transitions
(Elsevier Science Bv, 2016)
Change of the thermo-morphologic and thermotropic properties of liquid crystals exhibiting multiple phase transitions vs. thickness of liquid crystalline layer have been investigated in this work. The sandwich-cells with ...
Peculiarities of thermo-morphologic and thermotropic transformations of heterophase regions: nematic <-> isotropic phase transition in 4-n-Alkyl-4 '-cyanobiphenyl mesogens
(Natl Inst Optoelectronics, 2019)
Important peculiarity of phase transitions in liquid crystalline materials is availability of the heterophase regions, in which low temperature and high temperature phases simultaneously take place. In this work, peculiarities ...
Peculiarities of Defective Formations in Heterophase Regions of the Thermotropic Phase Transitions in Liquid Crystals
(Wiley-V C H Verlag Gmbh, 2019)
A unique feature of phase transitions in liquid crystalline materials is the availability of heterophase regions. In such regions, the simultaneous coexistence of high temperature and low temperature phases takes place. ...
Thermotropic cholesteric liquid crystals. Thermo-morphologic, optical refracting and birefringent properties: Direct and reverse phase transitions
(Elsevier, 2020)
Temperature dependences of the average refractive index < n >, refractive indices of the ordinary ray n(o) and the extraordinary ray n(e), and the birefringence Delta n have been investigated in two cholesteric liquid ...
1,3-Dimethyl-5-(3,4,5-tris(alkoxy)benzoyl) barbituric acid derivatives and their liquid crystalline difluoroboron complexes: Synthesis, characterization and comparative investigations of mesomorphic, thermotropic and thermo-morphologic properties
(Elsevier, 2014)
A series of 1,3-dimethyl-5-(3,4,5-tris(alkoxy)benzoyl) barbituric acid derivatives 1a-4a with various chain length were synthesized by our group for the first time through the addition of 1,3-dimethyl barbituric acid to ...
Analogy between periodic patterns in thin smectic liquid crystal films and the intermediate state of superconductors
(Natl Acad Sciences, 2020)
Spontaneous breaking of symmetry in liquid crystal (LC) films often reveals itself as a microscopic pattern of molecular align-ment. In a smectic-A LC, the emergence of positional order at the transition from the nematic ...
