Výsledky vyhledávání - "Rekha S. Hegde"

Porous carbon nanoparticles dispersed nematic liquid crystal: influence of the particle size on electro-optical and dielectric parameters

Autor: Veena Prasad, Gurumurthy Hegde, Govind Pathak, Rekha S. Hegde, Supriya S Punjalkatte, Thitima Rujiralai

Publikováno v: Liquid Crystals. 49:1223-1234

Porous carbon nanoparticles (PCNPs) of four different sizes (~180 nm, ~51 nm, ~41 and ~25 nm) were dispersed into a nematic liquid crystal (NLC) in 0.25 wt% concentration. PCNPs were derived from b...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4b824fdeaae66622215616f44c95e28c
https://doi.org/10.1080/02678292.2021.1988740

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Achiral bent-core salicylaldimine compounds exhibiting dark conglomerate and B2 mesophases: effect of linkage groups and lateral substituents

Autor: Jitendra Kumar, Rekha S. Hegde, Veena Prasad

Publikováno v: Liquid Crystals. 46:1091-1107

Four new series of achiral bent-core compounds and two biphenyl derivatives of them have been synthesised and their mesomorphic properties are studied. These mesogens are salicylaldimine de...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a4e3564f4dde4541dd5c2a48543f0bcd
https://doi.org/10.1080/02678292.2018.1556822

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The first examples of V-shaped compounds exhibiting a B 5 mesophase and a direct transition from the isotropic to a polar biaxial smectic A mesophase

Autor: Veena Prasad, M. Monika, Rekha S. Hegde, Jitendra Kumar

Publikováno v: Journal of Molecular Liquids. 249:97-105

Here we report, the first observation of a B5 mesophase and a direct transition of the isotropic phase to a polar biaxial smectic A (SmAPA) mesophase in V-shaped compounds with acute angle. Achiral non-linear mesogens based on 1,2- (V-shaped) and 1,3

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a9a7b02d57ac2fcde1eaa89708bd17d2
https://doi.org/10.1016/j.molliq.2017.11.024

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Influence of alkyl and alkoxy groups on photoresponsive behaviour of bent-core azo mesogens: Synthesis, mesomorphic and photoswitching properties

Autor: Rekha S. Hegde, Gurumurthy Hegde, B.N. Sunil, Veena Prasad

Publikováno v: Journal of Molecular Liquids. 309:113091

Two homologous series of 3-hydroxy benzoic acid based bent-core mesogens with an azobenzene wing bearing either alkoxy or alkyl terminal chains are synthesised and their liquid crystalline and photoswitching properties are investigated. The synthesis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1bc39b07f905c1e4b2a9fc98108faa9c
https://doi.org/10.1016/j.molliq.2020.113091

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