Templated nanoporous membranes based on hierarchically self-assembled materials

Gracia, I. ; Romero, P. (Universidad de Zaragoza) ; Serrano, J. L. (Universidad de Zaragoza) ; Barberá, J. (Universidad de Zaragoza) ; Omenat, A.

Resumen: The preparation of nanoporous materials from columnar hexagonal liquid crystalline networks has been accomplished by the crosslinking of a H-bonded supramolecular system, formed by a central tricarboxylic molecule (template) and three promesogenic units with a pyridine based donor/acceptor synthon and vinyl groups. Such supramolecular systems exhibit a columnar hexagonal mesophase, whose order is fixed by the photoinitiated polymerization reaction of the vinyl groups and 2, 2'-(ethylenedioxy)diethanedithiol (EDDT), used as a crosslinker. Further removal of the stacked molecules used as templates leads to nanoporous materials (membranes) with the hexagonal columnar order provided by the mesophase. These membranes have demonstrated the ability to selectively adsorb certain acid dyes, depending on their size and acid strength. Moreover, the possibility of preparing organic-inorganic composite materials has been explored. Silver nanoparticles (AgNPs) with a controlled size have been grown in the cavities of the materials by means of chemical reduction of silver ions.

Idioma: Inglés

DOI: 10.1039/c6tc05468d

Año: 2017

Publicado en: JOURNAL OF MATERIALS CHEMISTRY C 5, 8 (2017), 2033-2042
ISSN: 2050-7526

Factor impacto JCR: 5.976 (2017)

Categ. JCR: PHYSICS, APPLIED rank: 20 / 146 = 0.137 (2017) - Q1 - T1
Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 42 / 283 = 0.148 (2017) - Q1 - T1

Factor impacto SCIMAGO: 1.917 - Materials Chemistry (Q1) - Chemistry (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA/E04
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CTQ2015-70174-P

Tipo y forma: Article (Published version)

Área (Departamento): Área Química Orgánica (Dpto. Química Orgánica)