Autor según el artículo: R. Teruel-Juanes, Krzysztof Artur Bogdanowicz, J.D. Badia, Victor Sáenz de Juano-Arbona, R. Graf, Jose A. Reina, Marta Giamberini, A. Ribes-Greus *

Departamento: Enginyeria Química Química Analítica i Química Orgànica

e-ISSN: 2073-4360

Autor/es de la URV: Giamberini, Marta / Reina Lozano, José Antonio

Palabras clave: Segmental dynamics Poly[2-(aziridin-1-yl)ethanol] (paze) Macromolecular cooperativity Dielectric relaxation spectra Den-dronic liquid crystal membranes

Resumen: Unoriented and oriented membranes based on dendronized polymers and copolymers obtained by chemical modification of poly[2-(aziridin-1-yl) ethanol] (PAZE) with the dendron 3,4,5-tris[4-(n-dodecan-1-yloxy)benzyloxy]benzoate were considered. DSC, XRD, CP-MAS NMR and DETA, contribute to characterize the tendency to crystallize, the molecular mobility of the benzyloxy substituent, the dendritic liquid crystalline group and the clearing transition. The orientation of the mesogenic chain somewhat hindered this molecular motion, especially in the full substituted PAZE. The fragility, free volume and thermal expansion coefficients of these membranes near the glass transition are related to the orientation and the addition of the dendritic groups. PAZE-based membranes combine both order and mobility on a supramolecular and macroscopic level, controlled by the dendritic group and the thermal orientation, and open the possibility of preparing membranes with proper channel mobility that promotes selective ionic transport.

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

Direcció de correo del autor: joseantonio.reina@urv.cat marta.giamberini@urv.cat

Identificador del autor: 0000-0002-9245-4135 0000-0001-8278-3552

Fecha de alta del registro: 2023-09-30

Versión del articulo depositado: info:eu-repo/semantics/publishedVersion

Enlace a la fuente original: https://www.mdpi.com/2073-4360/13/7/1060

URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/

Referencia al articulo segun fuente origial: 13 (7): 1060-

Referencia de l'ítem segons les normes APA: R. Teruel-Juanes, Krzysztof Artur Bogdanowicz, J.D. Badia, Victor Sáenz de Juano-Arbona, R. Graf, Jose A. Reina, Marta Giamberini, A. Ribes-Greus * (2021). Molecular Mobility in Oriented and Unoriented Membranes based on Poly[2-(Aziridin-1-yl)ethanol]. Polymers , 13(7), 1060-. DOI: 10.3390/polym13071060

DOI del artículo: 10.3390/polym13071060

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2021

Tipo de publicación: Journal Publications