Author, as appears in the article.: Teruel-Juanes, Roberto; Bogdanowicz, Krzysztof Artur; Badia, Jose D; Juano-Arbona, Victor Saenz de; Graf, Robert; Reina, Jose A; Giamberini, Marta; Ribes-Greus, Amparo
Department: Enginyeria Química Química Analítica i Química Orgànica
e-ISSN: 2073-4360
URV's Author/s: Giamberini, Marta / Reina Lozano, José Antonio
Keywords: Segmental dynamics Poly[2-(aziridin-1-yl)ethanol] (paze) Macromolecular cooperativity Dielectric relaxation spectra Dendronic liquid crystal membranes Den-dronic liquid crystal membranes
Abstract: 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-(<i>n</i>-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.
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: marta.giamberini@urv.cat joseantonio.reina@urv.cat
Author identifier: 0000-0001-8278-3552 0000-0002-9245-4135
Record's date: 2024-11-02
Papper version: info:eu-repo/semantics/publishedVersion
Link to the original source: https://www.mdpi.com/2073-4360/13/7/1060
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Polymers . 13 (7): 1060-
APA: Teruel-Juanes, Roberto; Bogdanowicz, Krzysztof Artur; Badia, Jose D; Juano-Arbona, Victor Saenz de; Graf, Robert; Reina, Jose A; Giamberini, Marta; Ri (2021). Molecular Mobility in Oriented and Unoriented Membranes based on Poly[2-(Aziridin-1-yl)ethanol]. Polymers , 13(7), 1060-. DOI: 10.3390/polym13071060
Article's DOI: 10.3390/polym13071060
Entity: Universitat Rovira i Virgili
Journal publication year: 2021
Publication Type: Journal Publications
Repositori URV