dc.contributor
Universitat Politècnica de Catalunya. Departament de Física
dc.contributor.author
Sellarès González, Jordi
dc.contributor.author
Diego Vives, José Antonio
dc.contributor.author
López Pérez, David Orencio
dc.contributor.author
Salud Puig, Josep
dc.contributor.author
Robles Hernández, Beatriz
dc.contributor.author
de la Fuente Lavin, Maria Rosario
dc.contributor.author
Cañadas Lorenzo, Juan Carlos
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Mudarra López, Miguel
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López de Rioja, Víctor
dc.contributor.author
Levit Valenzuela, Rafael
dc.contributor.author
Díez Berart, Sergio
dc.date.issued
2022-11-21
dc.identifier
Sellarès, J. [et al.]. 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. "Physical review E", 21 Novembre 2022, vol. 106, núm. 5, p. 054702:1-054702:9.
dc.identifier
https://hdl.handle.net/2117/377005
dc.identifier
10.1103/PhysRevE.106.054702
dc.description.abstract
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)alkane homologous series ( CB n CB ): the liquid crystal (LC) dimers CB9CB and CB7CB, as well as a binary mixture of both. By doping CB9CB with a small quantity of CB7CB, the crystallization is inhibited when cooling the sample down, while the bulk properties of CB9CB are retained and we can investigate the supercooled behavior close to the glass transition. The study reveals that the inter- and intramolecular interactions of the mixture are similar to those of pure CB9CB and confirms that there is a single glass transition in symmetric LC dimers.
dc.description.abstract
Peer Reviewed
dc.description.abstract
Postprint (published version)
dc.format
application/pdf
dc.publisher
American Institute of Physics (AIP)
dc.relation
https://journals.aps.org/pre/abstract/10.1103/PhysRevE.106.054702
dc.rights
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights
Attribution-NonCommercial-NoDerivatives 4.0 International
dc.subject
Àrees temàtiques de la UPC::Física
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Solid state physics
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Crystalline polymers
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Physical Systems
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Nematic liquid crystals
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Thermotropic liquid crystals
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Condensed Matter
dc.subject
Materials & Applied PhysicsPolymers & Soft Matter
dc.subject
Física de l'estat sòlid
dc.subject
Polímers cristal·lins
dc.title
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
