2024-03-29T00:25:23Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1487222018-05-30T12:11:53Zcom_10261_31com_10261_3col_10261_284
Templated nanoporous membranes based on hierarchically self-assembled materials
Gracia, Ismael
Romero, Pilar
Serrano, José Luis
Barberá, Joaquín
Omenat, Ana
European Commission
Ministerio de Economía y Competitividad (España)
Ministerio de Ciencia e Innovación (España)
Diputación General de Aragón
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.
MINECO project CTQ2015-70174-P, and Diputación General de Aragón-Fondo Social Europeo (DGA-FSE) (Project E04). I. G. acknowledges a MICINN-FPI fellowship. T
Peer Reviewed
2017-04-24T07:29:43Z
2017-04-24T07:29:43Z
2017
2017-04-24T07:29:43Z
artículo
http://purl.org/coar/resource_type/c_6501
doi: 10.1039/c6tc05468d
issn: 2050-7526
Journal of Materials Chemistry C 5(8): 2033-2042 (2017)
http://hdl.handle.net/10261/148722
10.1039/c6tc05468d
http://dx.doi.org/10.13039/501100004837
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100003329
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTQ2015-70174-P
Sí
none
Royal Society of Chemistry (UK)