Two Glass Transitions Associated to Different Dynamic Disorders in the Nematic Glassy State of a Non-Symmetric Liquid Crystal Dimer Dopped with g-Alumina Nanoparticles

Autor: Sergio Diez-Berart, David O. López, Josep Salud, José Antonio Diego, Jordi Sellarès, Beatriz Robles-Hernández, María Rosario de la Fuente, María Blanca Ros

Publikováno v: Materials, Vol 8, Iss 6, Pp 3334-3351 (2015)

In the present work, the nematic glassy state of the non-symmetric LC dimer α-(4-cyanobiphenyl-4′-yloxy)-ω-(1-pyrenimine-benzylidene-4′-oxy) undecane is studied by means of calorimetric and dielectric measurements. The most striking result of t

Externí odkaz: https://doaj.org/article/352778fb70fd4c38bbf16d2e8de59db9

Effect of Molecular Flexibility on the Nematic-to-Isotropic Phase Transition for Highly Biaxial Molecular Non-Symmetric Liquid Crystal Dimers

Autor: María Blanca Ros, Miguel Angel Pérez-Jubindo, Josep Salud, Sergio Diez-Berart, María Rosario de la Fuente, Nerea Sebastián, David Orencio López

Publikováno v: Materials, Vol 4, Iss 10, Pp 1632-1647 (2011)

In this work, a study of the nematic (N)–isotropic (I) phase transition has been made in a series of odd non-symmetric liquid crystal dimers, the α-(4-cyanobiphenyl-4’-yloxy)-ω-(1-pyrenimine-benzylidene-4’-oxy) alkanes, by means of accurate c

Externí odkaz: https://doaj.org/article/21c571ad487f468fb01437d4545aa581

Comparative dielectric and thermally stimulated-depolarization-current studies of the liquid crystal dimers 1″,9″-bis(4-cyanobiphenyl-4'-yl) nonane and heptane and a binary mixture between them, close to the glass transition

Autor: Jordi Sellarès, José Antonio Diego, David O. López, Josep Salud, Beatriz Robles-Hernández, María Rosario de la Fuente, Juan Carlos Cañadas, Miguel Mudarra, Victor López de Rioja, Rafael Levit, Sergio Diez-Berart

Publikováno v: Physical review. E. 106(5-1)

We have performed dielectric spectroscopy and thermally stimulated-depolarization-current experiments to study the molecular dynamics of the twist-bend nematic phase close to the glass transition of two members of the 1¿,7'-bis(4-cyanobiphenyl-4'-yl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52478a9e4e952ce8b1dfa22a7f3c5295
https://pubmed.ncbi.nlm.nih.gov/36559473

Two Glass Transitions Associated to Different Dynamic Disorders in the Nematic Glassy State of a Non-Symmetric Liquid Crystal Dimer Dopped with γ-Alumina Nanoparticles

Autor: María Rosario De la Fuente, Jordi Sellarès, S. Diez-Berart, María Blanca Ros, Josep Salud, David López, Beatriz Robles-Hernández, J.A. Diego

Publikováno v: Materials
Volume 8
Issue 6
Pages 3334-3351
Materials, Vol 8, Iss 6, Pp 3334-3351 (2015)
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This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license.-- et al.
In the present work, the nematic glassy state of the non-symmetric LC dimer α-(4-cyanobiphenyl-4'-yloxy)-ω-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68200575ee2e703958810354aafa6095
http://europepmc.org/articles/PMC5455711

Influence of liquid crystalline phases on the tunability of a random laser

Autor: Jose Trull, S. Diez-Berart, Josep Salud, David López

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
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In this paper, we report the temperature behavior of an optimized disordered photonic system-based liquid crystal by means of heat capacity and refractive index measurements. The scattering system is formed by a porous borosilicate glass random matri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53b39d567233cb0ec07bd0ee1bc69d8c
https://hdl.handle.net/2117/105854